Wednesday, May 21, 2014

Metal Slug Defense - How to rescue the Prisoners of War (POW)?


Previously, i have mentioned that the rescue of POW (Prisoners of War) is still a myth as it isn't stated clearly how to do that. Then, after some trials and errors, i here deduce that it isn't a 'random' rescue. Instead, the POW could be saved if you meet the 'hidden conditions' of defeating the stages.

P.S (before you comment):
The conditions of the POW rescues stated in this post MAY apply only to the Metal Slug Defense of the version before 1.5.0. If you have something to add on, please proceed to the latest post here (v1.8.0).


Before that, let's see how far i have reached:




















































.... And many more....

Yeah! I have completed World 1, World 2 and World 3! (Including all Emergency Areas)

World 1 Completed

World 2 Completed


*****UPDATED (2014-07-10)*****
*Thanks for all your feedback for the points here*

Below shows the summary of the conditions to save the POWs in the Metal Slug Defense game. Each condition might only allow you to rescue 1 POW. So you might play the same stage again and again to rescue the others.

  • DO NOT activate soldiers' skill (Yup, it is the glowing lights on the soldiers. Suppress yourself from the temptation. lol. You will be surprised that the chances of saving the POW would be greatly increased. Suspected stages: World 1 stage 1-1, 3-2, 3-4, 7-1, etc) 
  • Minimum Casualties (or NO casualties) (At the beginning stage, you may use the Sandbag strategically to minimize the casualties to 0.   After you have unlocked or purchased more powerful units, you may use those high-HP units while reducing the low-HP units in the battle) 
  • Minimum soldiers summoned (Don't unleash all your soldiers on the deck infinitely. If impossible, reduce your soldiers amount to as minimum as possible in order to save the POW. Suspected stage: World 1 stage 5-3 (around 7 soldiers for my case) )
  • Minimum soldiers types summoned (It is observed that in some stages, you may only use limited soldier types in order to save the POW. Suspected stage: World 1 stage 6-2 (only summon Marco, Eri and Sandbag, or just 2 types) )
  • Time consumption (This is the most common requirement - defeat the stage AS FAST AS POSSIBLE. With the new updates, you may take the "Rank S" as the reference. Usually, you can experiment this condition as the first priority after having all the HOME and UNIT upgraded to the Max)
  • Do not upgrade "AP Buildup speed" during combat (The Rumi Aikawa, on the bottom left. We tend to upgrade the AP buildup initially. But sometimes it requires us not to tap on it in order to save the POW. Suspected stage: World 1 stage 6-4, 7-4, World 2 stage 1-1)
  • Do not use sandbag  (Sandbag is a great defense, especially when you haven't upgraded your troops sufficiently. But you might not need it any more once you own more powerful units. The chances of rescuing the POW could be increased without the sandbag. Suspected stage: World 1 stage 9-2)
  • Metal Slug Attack activation (It is definitely one of our favorite weapons to effectively crush the enemies. But in some stages, you might not use it for the sake of POW saving )
  • Maximum One unit per soldier type on your deck (Thanks for some Metal Slug Defense maniacs here for proving that this condition is effective in the POW rescue. Yup, tap your soldiers never more than once on the deck during the combat)
  • DO NOT summon the bought soldiers (To be more precise, you may only use the basic units, such as Marco, Eri, etc. Suspected stages: World 1 stage 9-5, and many others in World 2) 
  • Only use Blue Soldier (and Metal Slug Attack > 3 times)  (This is the strangest observation made. But surprisingly it does help rescue the POW ... Suspected Stages: World 2 stage 5-1, stage 5-2, stage 10-4)
  • Defeat the BOSS first (eg: giant tanks, etc) before the enemies' portal  (Here, the BOSS may be anything with larger-than-usual sizes (eg: tanks, lobster, etc). The approach is, to wait until the BOSS moves out of the portal completely before you unleash the soldiers' skills. )
  • Defeat the portal first before the BOSS (This is the opposite with the point above. Before the Boss moves out of the portal, destroy the portal with the soldiers' skill. Suspected stage: World 2 stage 6-4)

Some other game variations suggested by other players that you might want to experiment on (which i haven't tested)
  • Only summon machines, but no walking soldiers
  • Fully upgrade "AP Buildup speed" 
Then you might be asking "Are you crazy? Nobody got time for that!".

I feel the same. So, to reduce the sortie amounts consumed and my time, i tend to test on multiple conditions at the same time.

Especially now there is a new Daily Boss Challenge introduced. Both time and sortie points are running out easily. Here's my order of experiment (Except the third 'Hell' Boss stage):
  1. Use only minimum Trevor. (while using it, i tend to 'Not Upgrade AP buildup', 'Not activate skills', and 'Not activate Metal Slug Attack'). I assume Trevor as a bought unit should also be able to meet the conditions with the similar effects. If the stages are too strong to beat (such that i am forced to activate the skills, then i would further experiment on that later.
  2. Test on both 'Basic Units' and 'Minimum soldier types', Such as Fio, Marco, Eric.
  3. Test on 'Time Consumption', by using the strongest troops ever on my deck.
  4. Use only 1 soldier per unit type 
  5. ...
In the Boss stage, I would go for 'Time Consumption' factor first. Then, gradually, I test on the minimum troops and casualties.

I believe this approach would save some time.

Trevor: Highest HP among the non-machine soldiers. Fast Movement. Low AP Cost. Long Attack. Very High Attack. Special ability is to jump backward while unleashing more attacks.

*Thanks to 'dneng' for the info. Trevor is indeed an awesome unit that is worth a try.


Just one thing for sure, you got to upgrade your HOME and UNIT from time to time, so that you can use the minimum resources and soldiers to defeat a stage. Apart from that, you are more able to use different approaches and strategies to destroy the enemies for the sake of the POW rescue.

Before coming to an end, last but not least, you may also use the Bonus item 'Radar' to 100% rescue the POW. lol

*To avoid you from getting drowned in the comments below, here's a quick list of specific stages that you might want to refer to, based on the game play experience from other players. (Thanks again for all the contributors' efforts). Search their names on this page to reach their comments faster...

World 1 stage 2-2: Rami Civil
World 1 stage 3-1: wakamolee
World 1 stage 3-4, 4-3, 4-4, 5-3, 5-4, 5-5, 6-2, 6-3, 6-4: Hugo
World 1 stage 6-3, 7-1: Gregz Amorim
World 1 stage 7-1: Jhon Li
World 1 stage 7-2, 7-3, 8-2: Hoong Yi
World 1 stage 7-2: 김민섭
World 1 stage 7-1, 7-2, 7-3, 7-4, 8-1, 8-3, 8-4, 8-5, 9-1, 9-2, 9-3, 9-4, 9-5, 10-1, 10-2, 10-3, 10-4: Hugo
World 1 stage 7-1, 7-2, 7-3, 8-3: Ben Castanon
World 1 stage 7-3, 7-4, 8-1: Franz Eubanque Corsini
World 1 stage 9-4, 10-1, 10-2, 10-3, 11-1, 11-2, 11-3: Aeron
World 1 stage 9-5: Aeron, Lui Viayra
World 1 stage 10-4: Reddustgamer d
World 2 stage 10-4: gApcH
World 2 stage 11-1: Evil Greebo


Related posts:
1. Metal Slug Defense New Missions V1.4.0
2. Metal Slug Defense Daily Boss Challenge V1.4.0
3. Metal Slug Defense Wifi VS Mode 
4. Metal Slug Defense World 3 V1.4.0 
5. Metal Slug Defense World 3 V1.5.0 - Southern Brazil and China
6. Metal Slug Defense New Missions V1.5.0 
7. Metal Slug Defense Wi-Fi VS Mode V1.5.0 - 2 VS 2
8. Metal Slug Defense New Missions V1.6.0
9. Metal Slug Defense World 3 V1.6.0 - Canada, Australia and Central Africa
10. Metal Slug Defense Fourth Map V1.8.0
11. Metal Slug Defense Fourth Map POW Rescue V1.8.0
12. Metal Slug Defense V1.8.0 - Which unit is the strongest now?

267 comments:

  1. try this condition, the numbers of enemies you have to defeat using only one specific character.. example you have to defeat allen o neil 5 times using zombie marco,

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    1. Hi RanJo Calayag, could you mention which potential stage that you discover the condition? By the way, i have updated the post again. With the conditions stated, i have almost rescued the POW in the World 1.

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    2. i cant remember the exact stage, but im sure its all on the world 2..

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    3. I see. I am unable to verify this at the moment. But i can see you have played this metal slug defense so meticulously (testing a specific soldier to defeat a stage).

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    4. and sometimes you have to keep 4 or 5 hyakutaros alive at end of the game

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    5. i already defeat all the emergency both world 1 and 2..

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    6. i already use all the conditions you posted.. sometimes none of them are not working in one stage

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    7. sometimes you have to summon all of your units on your deck but only once, please notify me if this conditions are really working or it is only a coincidence

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    8. Hi RanJo Calayag, you are fast. I admit there are still several stages that i am yet to discover how to rescue the POW. (Damn the SNK developer who makes our lives difficult with those hidden conditions... :p)
      Anyway, i agree on your last reply, which i wrote as the last point - one unit per soldier type. I do observe this as well, but wasn't sure enough. Now since you experience it, i believe it is most probably not a coincidence.

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    9. I can verify that World 1 Stage 7-2 requires u to summon all units only once to free 1 POW. I have tested that and it worked. but on a side note.. I realised that I had 0 casualties for that round too.. So it could actually have been that very reason I rescued a pow... but ill try this same theory on the other stages as well to see which other world it works on...

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    10. add this .. dont summon or put in the deck a character that you bought on shop

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    11. To rescue a POW in World 1 Stage 7-3 u need to not use the special skill of a soldier.. That one and possibly not using the Metal Slug Charge as well...

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    13. World 1 Stage 7-2, use only 5 soldiers (including sv 001 and camel) I could rescue 1 POW...

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    14. what if there are no hidden conditions??, we can not really enjoy the thrill of this game.. imagine if there are no hidden conditions??, we can finish that game less than 2 weeks.. as easy as 1 2 3 :D by the way, i hope there is a world 3 or 4 or 5 :D haha coz im almost done.. i already max all home customize and units

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    15. thanks for the confirmation Hoong Yi.. im sure there are lot of stages of that kind of condition will work

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    16. what do you think will happen if you rescued all the POWs in world 1 or 2??? world 3 will be available?, or the Game Is Over??,

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    17. yeah i wish there were no hidden conditions too! but this is what it is.. even back then in metal slug games we need to find the hidden locations of the POW's... so basically this is a replica of what it used to be in the arcade games... I love the metal slugs games... I spent many hours in weeks back then just replaying the game with my bro...

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    18. I believe there will be more updates coming soon... just that we need to wait a little while before they become available.. I hope the game improves on the Wifi vs, whether i lose or win I can't seem to ever get the medals that stated I won.. which is frustrating.. I hope they fix that soon..

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    19. you have to get 20,000 score before you get 3medals

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    20. oh really? so I basically need to score 20,000 to be able to win 3 medals for that round?? if so how do i score that amount?

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    21. try to put units that you obtain from final and emergemcies from world 1 and 2.. thats exactly 10 units, 4 emergencies world 1, 4 emergencies world 2, 1 final world 1, 1 final world 2..


      world 1
      final-SV camel
      E1-3ton truck
      E2-di cokka
      E3-nop sarubia
      E4-hopper mecha


      world 2
      final-zombie marco
      E1-abbul abbas
      E2-allen oneil
      E3-donald morden
      E4-mars people

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    22. the highest score that you get from winning wifi vs is (2000 score).. so you have to win 10 times before you get 3 medals..

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    23. RanJo Calayag and Hoong Yi, thanks for your verification on the condition of "Summon only 1 unit per soldier type". Now the post is updated. Apart from that, i have added RanJo Calayag's point of "Do not put the bought characters on the deck". (i wish i could verify this soon, or do you have an idea of which stage is it?)

      Hoong Yi, i think what RanJo Calayag means is that he hopes this Metal Slug Defense would go endless (through hidden stuffs and the updates :p) Ya at first i thought this game would consume like less than 10 days to complete. But the secret POW rescue things make me continue for another few weeks lol. (and still yet to finish). But it is definitely a great time killer.

      In terms of the possible updates, i think they could easily make too. As observed from the current game play, once you unlock another world, the HOME and UNIT could be further upgraded for another 10 levels, while the enemies are getting harder.

      Still, kindly update me again if there are new findings. :)

      About Wifi VS, i haven't started playing any yet. Will join your conversation if i do.

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    24. Minimum soldiers summoned worked for World 1 Stage 8-2! Tried and tested! it worked

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    25. Same worked for World 1 Stage 8-4

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    26. ahaay.. im almost done guys, 3 more POWs world 1 area 5 .. 1 2 and 4 stage.. i wish world 3 will be available after i finish this :( haha

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    27. world 2 all POWs conquered without using radar :)

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    28. dont stick to your deck ( your favorite deck or your most powerful deck ) sometimes you have to edit your deck

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    29. RanJo Calayag, seriously? It is damn fast! i still get stuck in the World 1 stage 9-5. I am still testing on your ideas of changing the deck...

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    30. im done!, ahay :( i am now waiting for the update wishing there would be world 3.. world 1 area 9 and 5 are the the last area i completed

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    31. do me a favor Edward Cullen?, can you divide all the units by group and bring down them on your post.. example

      all humans
      all machines
      all machines with pilot
      all humans riding animals
      aliens
      arabians
      donald morden troops
      zombies
      all men
      all women
      all emergencies world 1
      all emergencies world 2
      all emergencies both 1 and 2
      all bought units
      all login bonus units
      all powerful units
      all weakest units
      .. if you know what i mean, all the posible groups??,

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    32. Bro, you are such a Metal Slug Defense Maniac! I am still far from reaching you!

      Any special intention for that grouping? ;)
      I am personally Ok with that, just it might take me some time to complete your "all stated categories". Guess i should open a new post for it.

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    33. it think they're in a group that you should summon to rescue a POWs .. i wish the next update will come very soon :)

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    34. wow... great job... how did u do it? im still stuck at World 1 Stage 10... need to free the last 2 POW and I'm done with World 1... lol still a long way to go for me... World 2 is gonna be tough... care to share some new conditions that u found out that aren't stated in this blog? lol

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    35. can you tell me what are the conditions you used?,

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    36. Hi RanJo Calagya, you may ... urge the SND developers to quickly update another World in the google play. lol

      Meanwhile, i can most probably confirm another condition (inspired by your idea) - Do not summon the bought soldiers (but i still have it on the deck), such as Hyakutaro in the World 9-5 (correct me if i am wrong). I am used to summon this (old folk?) as he uses long range attack which helps reducing the casualties. Now i am left one more stage (11st) in World 1 for the POW rescue.

      Hoong Yi, sorry i can't help here (although i have already rescued the POW in stage 10. oops) Not sure if i have missed some points while playing... Could you roughly mention how to experiment? Here's my orders:

      1. Summon soldiers as quickly as possible to defeat the stage faster - Time consumption
      2. Use SV-001, NOP-03 SARUBIA, DI-COKKA or anything having higher HP to reduce casualties as much as possible. (At the same time this uses the minimum soldier type (3 or 4))
      3. Don't upgrade AP build-up + Don't activate Metal Slug at the same time + Don't use sandbag (kill 3 birds with one stone lol)
      4. Summon Only 1 unit per soldier type.
      5. Do not summon the bought soldiers
      6. Use only walking soldiers, no machines or vehicles ...

      Something like this, combine the conditions if possible.

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    37. Edward Cullen, yea thats right.. combined all the posible conditions as posible, more complicated more chance of freeing POWs :D every now and then im checking for updates even if i already click auto update for MSD.. hahaha :D im playing flappy bird while waiting for update.. haha :D

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    38. (Can't edit the reply in blog -.-. Refer to my point 4 and 5 ('Summon only 1 unit per soldier type' and 'Do not summon the bought soldiers' can be combined as well if you have arranged the deck properly)

      RanJo Calayag, i suggest another time-killer game to you as well - Pictologic. You may try it apart from the Flappy bird game. :)

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    39. Edward Cullen, Thanks hahaha :D

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    40. Best 3.. hahaha what is your best?

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    41. Best 5.. Fffffuuuuuuccccckkkk >_< haha

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    42. LOL. I have another post on this. Basically if you practice more, it won't be hard to achieve 30+. lol

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    43. i finally completed world 1! yay! now on to World 2.. hahaha.. trying to get zombie marco first.. then slowly progress with the other stages...

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    44. just played the updated version about a minute ago.. added 2 new stages, and i finished it all Rank S no POWs in the new stages, and now what?, thats it?

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    45. ahay im so pissed off.. hahaha ive waited more than a week for that 2 new stages?, and i finished it less than 10 minutes?, disappointed

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    46. hahaha i know what u mean... and yeah i was very surprised that there's no POWs... its so weird... but the bright side is we get 60 medals upon beating it! haha

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    47. Lol. Same here. Get Rank S at the first try in all the new stages (France and Mexico). :)

      Too bad that's no more POW rescue to unlock new units / elements (such as Nadia, Trevor, Ralf, Clark, Leona, etc ... ) -.- But still, the new updates at least reward us with the 100 Medals + 60 more upon beating the stages. (like Hoong Yi said)

      AND the MSP is overflowing! (thanks to the infinite attempts of rescuing the POWs...) Just my personal opinion, it should be made such that the MSP can also be used to purchase the Shop Units (not just for the upgrading purposes).

      Anyway, i think there will be more updates in the future~


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    48. By the way, RanJo Cayalag, do you remember rescuing the POWs in the World 2 using ONLY Blue Soldiers + Metal Slug Attack?

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    49. yes i remember rescuing a lots of POWs using that condition, Try to summon only 2 or 3 soldier type and always include the blue soldier

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    50. yes i agree with the MSP can buy units and other stuffs.. my total MSP now is 1.5m MSP, i dont know what to do with this.. hahaha max all home stats and units

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    51. I see. Great :) (one user has mentioned that and i have added it).

      lol. 1.5M MSP!! It would be great if SNK could add an option to convert those MSP to the medals... at any rate haha. Hope they could find out some ways to consume that. Else, it might hit the 9999999? ;)

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    52. i wish i could buy a new world with those useless MSP.. hahaha

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    54. what do you think will happen when you get Rank S on all stages in world 1 and 2?

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    55. Haha. i was thinking the same. But i haven't managed to do that. Maybe a big surprise? :)

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    56. All i did for World 2 was spamming soldiers... skipped all the tanks ... it works quite well... most of the time im able to rescue 1 POW.. sometimes 2... never more than that though... haha... im almost done with world 2... now only left 3 stages and the mars people emergency stage...

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    57. Hi Hoong Yi, i think we are almost at the same rate :)
      I am left with World 2 areas 7, 8, 9, and several emergency areas. The fact is i am playing it at a very slow rate. haha

      By the way, from the game, it reveals that there would have more New Mission & Units soon :)

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    58. now playing the updated version.. im now on mission 5, its very hard .. haha and i love it :D new boss in the new map, every 24hours there is a new boss, if you did not beat the boss today, it will unlock next week the same day, monday to friday different bosses, its exciting! wooo.. another POWs to be rescued! i think those POWs are not the same as the previous worlds

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    59. Thanks for your quickest update. lol
      I am updating now. :)

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    60. i mean monday to sunday :D just like emergency areas.. but this one is 24hours, i already unlock friday boss which is Slug Copter

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    61. can we play friendly match now?

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    62. HAHA. My internet here not that stable for a Wifi match yet. Will ping you once it is fixed :)

      By the way, you are insanely fast :p

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    63. got 30 medals completing 10 missions :D

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    64. haha. Those missions are good tutorials for me :)
      Leona is another awesome unit.

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    65. Just Got The 3 Planes .. Slug Copter, Flying Tara And Samurai Planes :D

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    66. Envy :P
      Anyway, I wonder why the completed areas do not persist? I completed the Saudi Arabia area but it isn't there today anymore. Does it mean it would vary next week?

      By the way, i found that my "Samurai Planes" image is having a typo! Ranjo, do you have the same issue?

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    67. the image appear is a green soldier and its already on max level..

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    68. I see... same as here -.-
      And although the level is max, i think it is quite weak... (that 'level' must be another typo...)

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    69. Yes I Guess..

      BTW Fat Marco And Fat Tarma Unlocked :D

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    70. Hey RanJo, i have one last POW for stage 3. Do you remember the conditions you met?
      I tried "No AP buildup", "Not activate skill", "No casualties" and others, but seems not working....
      Also, it would be great if you post on the other post :)

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    71. anyone at mission 7 yet?? i cant seem to pass it no matter what... it is too tough!

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    72. Edward.. Stage 3??

      Hoong Yi.. You Have To Summon Iron ISO, Spike Bunker And Anti Air Craft As Many As You Can Before The Hermit Reach Near You, Build Them 1 Tank Away From Your Base.. i hope it works :D

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    73. RanJo, sorry for the lack of information.
      Specifically, i mean Tuesday Daily Boss (Kazakhstan) last stage.

      Hoong Yi, i have mentioned the New Missions in another post. Kindly refer to that :)

      My experience is, have an AP buildup upgrade several times first. Then summon the troops as much as possible altogether to attack the enemy in order to make it moves backward. (if summon individually, they might be easily destroyed)

      RanJo's idea is useful also. You can strategically build the tanks before the enemy approaches you.

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    74. always reach the Rank S i guess.. hehe im sorry but even me dont have time to do complicated strategy, because Stage 3 from all those daily boss is too tough right?? hehe but i can advice you to change your deck but im not sure, all human deck or all machines

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    75. do not summon bought soldiers, all humans and do not use special attack :D

      Just Unlock Fat Eri :D

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    76. i mean Fat Fio.. hehe tomorow Fat Eri

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    77. final boss.. thursday unlocked :D whats next aha LoL

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    78. Bro... well done! I have one more tomorrow :)
      There's nothing next :p

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  2. or you have to defeat one speceific enemy using any of your character

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  3. 9-4 (unlocked one POW): only used SV-001, slugnoid & ostrich slug to clear the stage. Metal slug attack used 3 times, AP was maxed

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    1. for the World 1 stage 9-4, there are 2 POWs to be rescued. I have rescued the first one, which i could categorize as "Minimum soldiers types summoned", similar to your statement. But another one is still a myth -.- Still in trials and errors.

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    2. For some reasons i managed to rescue the 2nd POW. not sure how it works, suspecting "one unit per soldier type"...
      =.=

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    3. Can confirm minimum solder summoned. I think the other one is timing.

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    4. hi dneng, thanks for your justification.

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  4. 9-5 (one POW): possibly time consumption

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  5. 9-5 (1 POW): same as 9-4 above

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  6. 10-1 (1 POW): same as 9-4 above but metal slug attack only used once

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  7. 10-2 (1 POW): no special skill
    (1 POW): Time consumption
    (1 POW): same as 9-4 but MS attack twice

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    1. Hi Aeron, thanks for your information. I will test them and update here.

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  8. 10-3 (1 POW): Time consumption
    11-1 (1 POW): no special skill
    11-2 (1 POW): same as 9-4
    11-3 (1 POW): Time consumption

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  12. 6-3: Got 1 POW upgrading AP Buildup speed twice, had summoned only one SV-Camel camel, one Ostrich Slug and two SV-001. Lost the ostrich or the camel, can’t remember. Didn’t use the Metal Slug Attack. Didn't use special attack. I was trying to get the last POW for a long time now. Tried a lot of different stuff. This seemed the only strategy that worked.

    7-1: Got 1 POW by not upgrade AP Buildup, had one unit of each by the end (I didn't buy any additional units), didn’t use special skill, used Metal Slug Attack once. Again, was trying this last POW for a long time, tried a lot of different stuff. This worked.

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    1. Hi Gregz Amorim, thanks for your details. And it seems that some stages may require more than 1 condition to rescue the POW. Good job.

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    2. 7-1. solo maquinas = 1 POW, nunguna perdida = 1 POW

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    3. Thanks jhon li for the reference :)

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  13. I already cleared the game twice with all pows rescued. Only two emergency stages remain and I have to say I got them all just by clearing it as fast as possible.

    The last always takes 5-6 tries in later stages but I always used the special attacks of the units, had shop units in my deck (arabian & zombie) the whole second tour I had a tank in my deck (mixed deck) and always upgraded AP (specially on very hard stages)

    It may be too late for me to check the conditions but just want to tell you, play it to start to finish trying to get at least 1 pow per stage so you get the bonus, then just go back to rescue them as you will be able to clear the stage a lot quicker then.

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    1. Hi pablp, i guess you have somehow fulfilled the conditions without knowing it.

      By the way, it may be also true that those conditions only increase the probability of rescuing the POWs (but not guarantee it). Say if you use lesser time to defeat a stage (and meet the threshold), you have a higher chance (eg: 90% ) of saving the POW. Meanwhile, if you don't, you might still have a little chance (eg: 5%). So, in your case, i guess you would need to make more attempts if overlooking the hidden conditions.

      I agree with your last point, "Rescue at least 1 POW per stage". That significantly enhances the troops.

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  14. Has anyone considered the possibility that one of the conditions may be win this board X number of times?

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    1. Hi, i personally think that this is unlikely... but if you have sufficient proofs i am glad to know and verify it :)

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  15. Stage 2-2 world 1 beat the mission using only SV-001

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    1. Hi Rami civil, thanks for this. I think i could categorize this as 'minimum soldier type', or 'minimum soldier'.

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  16. world 2 stage 10-4 i use only blue soldier to beat this stage and get 1 POWs

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    Replies
    1. Seriously, it sounds fishy as it really takes my quite some time to defeat the World 2 stage 10-4 with the blue soldiers ONLY!
      But I tried your suggestion and it actually works! (but i play with the Metal Slug Attack as well). Bro, you are really patient! Probably i could categorize this as "Minimum soldier type" ?

      Delete
    2. I think it not "Minimum soldier type" cause I try to use only one unit to beat this stage it can't work.
      .
      I use Metal Slug Attack for 4-5 time for this stage maybe it work for this.

      Delete
    3. I see. Great that you found it!

      Delete
    4. Bro, thanks for your idea. I try using Blue Soldier ONLY (and metal slug attack) in other stages such World 2 stage 5-1, and 5-2. I am able to rescue 2 POWs each! I have no idea how to explain this scenario.... it is simply too specific ...

      Delete
  17. Stage 8-2 is how one POW releases?

    ReplyDelete
    Replies
    1. Hi Diego Albero, have you tested the hidden conditions above?

      Delete
  18. World 1 area 9, stage 10-4 , how rescue last pow?

    ReplyDelete
    Replies
    1. Sorry i have no specific answer. Have you tried "minimum soldier types" or "Only summon 1 unit per soldier type"? Last time i did consume quite some time on stage 9 and 10 as well...

      Delete
    2. Sorry for the slow to respond, worked with me ... thank you

      Delete
    3. No problem. Glad that it works :)

      Delete
  19. 3-3 dont use units from the shop

    ReplyDelete
  20. On world 2, always there is a pow freed by use only principal chars, Marco, Tarma, Eri and Fio

    ReplyDelete
    Replies
    1. Maybe they want to challenge us using the basic characters only? ;)

      Delete
  21. The only way you can be sure to get the POW is getting the RADAR. If you don't like spending money you can root your phone and use game killer or freedom for example, the game is way too easy to hack i've found lots of hackers in pvp with all bosses lol. Search in youtube "how to root android" and after you root search for how to use freedom and game killer they are great. I already have 9999999 medals and MSCoins and i'm trying to find how to unlock all characters also. Sorry for bad english.

    ReplyDelete
    Replies
    1. Thanks for your alternative. But that may reduce the fun. i think most Metal Slug Defense fans don't mind playing more for trials and errors :)

      Delete
    2. You're welcome bro. But I think they are going to fix it in the next versions because the game is getting fame and they won't leave it that way, so if somebody really need medals should make it now. I don't think the game would lose the fun because still very hard to get all characters and POW's. Again sorry for bad english.

      Delete
    3. No worry. We all know get what you mean. :)
      It is definitely the 'ultimate cheat' of playing the mobile games...

      But i haven't tried that. I still prefer having a normal game play first. So far as observed, Metal Slug Defense is a well designed game which doesn't emphasize on the item purchase with the real money in order to defeat the stages. The rescue of POWs is more like an additionally interesting element that adds more variations into the game play. So i think it isn't necessary to have that 'ultimate cheat' yet. haha.

      Just beware of something before you root the device: "warranty voided".

      Delete
  22. i really have a bad time with level 9-5 i tried everything only human soldiers, not using purchased units, dont use special attacks but that not worked at all, i finally did it and the only thing that i can say is to complete the level the faster you can

    ReplyDelete
    Replies
    1. Glad that you found it finally!
      Yep, after upgrading the UNIT and HOME to Max, usually the first attempt is to clear the stage as fast as possible :)
      Most of the time it would rescue 1 POW.

      Delete
  23. Please help me to get the last emergency stage .. Hoppee mecha stage 5 i till only have 1 pow to save

    Btw thanks for al te conditions above it helps alot

    ReplyDelete
    Replies
    1. You mean World 1 or World 2? If not mistaken, the POWs in the World 1 last emergency can be rescued with the conditions mentioned (sorry, no specific answer). Just in case, you may try out the "Time consumption" again, aka clearing the stage faster after upgrading all HOME and UNIT.

      Meanwhile, in World 2... i haven't reached yet ...

      Delete
  24. Hi.
    How do you unlock the emergency stage of the Mars People in world 1??
    I already hace complete all stages, including the 3 emergency stages and rescue al the POWs but the Mars People stage mecer appears :(

    ReplyDelete
    Replies
    1. o. The 4th Emergency stages would appear after clearing the other 3. I am not sure what's the timing but you may experiment like, consuming 50-100 sorties point on random stages at a day, then it might appear. So far from observation, it is just random....

      Delete
    2. This comment has been removed by the author.

      Delete
    3. o? is it the one fixed in the v1.2.2?

      Delete
  25. 3-4 use one all kind of soldiers in the stage

    ReplyDelete
  26. 4-3 and 4-4 use Trevor, then Eri and then Fro

    ReplyDelete
  27. World Stage 10-1 POW 3 How do you unlock? probe almost everything!

    ReplyDelete
    Replies
    1. Sorry i have no specific answer here. Perhaps you could try on several conditions simultaneously.

      Delete
  28. Hi, author!( i don't know how to address you, haha)

    My name is max
    I'm trying to make some commend about this.

    -DO NOT activate soldiers' skill
    It is very subjective, since need to be minimum soldiers, u must have to open the skill to encounter back.
    -Minimum Casualties (or NO casualties) (agree with this √√√)
    -Minimum soldiers summoned (agree with this √√√)
    -Minimum soldiers types summoned (subjective)
    -Time consumption (defeat the stage faster than the reloading "Tank" <-- right corner[metal slug activation])
    -Do not upgrade "AP Buildup speed" during combat (agree with this √√√)
    -Do not use sandbag ( not sure with this, less using)
    -One unit per soldier type
    -DO NOT summon the bought soldiers such as Hyakutaro. (not yet try)
    -Only use Blue Soldier (not yet try)
    -Only summon soldiers (subjective, back to the topic of min soldiers tuype)
    -DO NOT put the soldiers/characters bought from the shop on the deck ( negative, able to release POW)
    *Some stages MAY require more than 1 condition to rescue the POW
    *These conditions MAY increase the probability of saving the POW.

    To be frank, maybe there is no a solid way to release it, since the game manufacturers want us to spend the energy and reload by cash, that what i thought in my mind.

    So, try a few times, and find the solution by ur way! it helps a lot. dont just follow others way. different stages might need different solution!

    Btw. happy gaming!!!

    ReplyDelete
    Replies
    1. Hi Max, thanks for your long comments~ you can call me Edward.

      Regarding the feedback, just to further clarify here:
      - Each condition can be experimented independently.

      So, the conditions such as: Do not activate soldiers' skill. It can be fulfilled without meeting the condition of "minimum soldier". Since the conditions of each stage vary, sometimes it doesn't matter if you summon infinite troops. As long as you don't activate the skills, the POWs can be rescued.

      On the other hand, the "Time consumption" factor, in my opinion, is to finish the stage with the Rank "S" in the latest update (sometimes i think Rank "A" is fine). So, i don't think it has something to do with the Metal Slug Attack Charge time.

      Finally, i admit that those hidden conditions might only increase the probability of saving the POWs. And i might still miss some points here.

      I am still in the progress in the World 2. So far the conditions mentioned should work in World 1. And I haven't used any Cash yet :)

      Delete
    2. Still, Max, thanks for your justification~

      Delete
  29. Insanity: doing the same thing over and over again and expecting different results. That is what i'm doing with the pow and sometime it works :D

    ReplyDelete
    Replies
    1. I know! That's exactly why my MSP reaches almost 2 Million now. lol.

      Delete
  30. In world 2, upgrad ap to max level seems always give 1 pow

    ReplyDelete
    Replies
    1. I haven't managed to notice this. I have 6 more areas to go in the World 2. Will try and verify this condition if possible.

      Delete
  31. One thing I found out about emergency stages, is you need to defeat the boss to get pow. Sometimes you push too fast so the boss hit box is behind the portal. You end up destroy the portal before the boss, end the game. It might go both way as it reduce the time consumption and give you 1 pow, but in most cases you need to defeat the boss as fast as possible to get other pows. only tested in world 2.

    ReplyDelete
    Replies
    1. This comment has been removed by the author.

      Delete
    2. Great! I think this is another valid condition (not just emergency stages). I have just tried the World 2 Stage 6-3. Using only basic units (Marco, Ero and Fio), I destroy the boss (the giant tank) first before the portal, and rescue 1 POW.

      Hope it could be further justified. Thanks bro.

      Delete
    3. Thanks dneng for this crucial information. I have now finished World 2 normal areas.

      Delete
  32. I used roughly 800 sorties on every boss stage from world 1 2/3/4 and world 2 1/2. Some keynotes on this:
    1. upgrade sortie and save up. Emergency stages start at 12:00pm (noon), 6pm, 10pm
    2. Kill the boss as soon as possible after it shows. You can achieve that by hold the special and release them all at once.
    3. Get "S", get through stage as fast as you can.
    4. If everything failed, just keep trying and double speed up. It's about luck.

    ReplyDelete
  33. I got 530 medals from in game rewards so far, beat world 1 and world 2, hasn't start another world 1. Trevor is so worth it.

    ReplyDelete
    Replies
    1. +1 for Trevor. This unit is just superb!
      Considering all factors: AP cost, production rate, attack power, attack range and etc, Trevor is the most cost effective unit. I could defeat most stages with merely 2 or 3 Trevors! (He himself is able to fulfill the multiple hidden conditions at one time!)

      Delete
    2. Trevor is such an op unit in "wifi vs" too, he's the only unit that can move backwards, which means unlike to other infantry units that got roll over by metal slug attack, he can jump back and hide behind a vehicle unit to survive!

      Delete
    3. Exactly! With high HP and long distance attack, the ability to jump backward makes Trevor much stronger.

      Furthermore, his attack is so strong that (+high attack speed) it causes the enemies to step backward, having their own attacks voided. He is indeed one of the strongest unit if having 1 vs 1. lol

      Delete
  34. hey edward!
    i found something useful, world 1 stage 2-1, 3-1, 4-1, 5-1, 6-1, 7-1, 8-1 (idk for stage above em), i realize that i need to use our regular soldier but in fact i use other troops like 1 marco, 1 eri, 1 trevor and the rest i use regular (last only). i use ability, i use MS, and i still complete all POW :)

    ReplyDelete
    Replies
    1. i see. Thanks for spotting this trend (although i couldn't verify that lol).

      Delete
  35. How do you unlock pow at world 1 final area stage 1?

    ReplyDelete
    Replies
    1. Hi Vahe Abazyan, i have non specific answer here. But i could suggest using Trevor (buy from shop) to test on the POW rescue, as this is able to fulfill multiple conditions at the same time. (you may just need 3 units to defeat the stages).

      Delete
  36. How do you unlock pow at North American N.West (World 1/Emergency) Stage 2??!

    ReplyDelete
    Replies
    1. Again, sorry i have no specific answer here. You may try out using Trevor to save time testing on the POW rescue.

      Delete
  37. Any idea of how do you get the last 2 pow's on stage 3 of the friday challenge on MSD?

    ReplyDelete
    Replies
    1. Possible conditions:
      1. No sandbag
      2. Minimum casualties
      3. Speed

      Not quite sure... anyway, kindly go to another post to discuss. Thanks

      Delete
  38. In World 2, not use soldier bought the shop, you can redeem 1 to 3 "pow" on stage ... works most of the stages!!

    ReplyDelete
    Replies
    1. Yup. SinMan did verify that. :)

      Delete
    2. Glad that you all are able to justify the points stated here~

      Delete
  39. 6-2 Marco, Eri and Sandbag verified rescue the 2 pow

    ReplyDelete
  40. My "Sortie Points" does not carry, expect a time to see if load automatically, but they "Sortie Points" stand still, without load..Anyone know what happens?

    ReplyDelete
    Replies
    1. huh?! It doesn't happen on my device. Are you upgrading to v1.3.0?
      However, i come across the facts that the latest Metal Slug Defense crashes frequently -.-

      Delete
    2. Yes, the version is 1.3.0... now I only have sortie points bought with medals!! :-(

      Delete
    3. Oops. That is serious! It might not help but maybe you could online while playing to see whether it is able to sync with their side.

      Meanwhile, you better feedback to the developer through Play Store...

      Delete
    4. sortie points doesn't replenish only if your system time has been changed to future. I think the game record the latest system time somehow. So if you system time is set to future, you need to set it to further future to make it work.

      Delete
    5. Bonus point: download the game and set systime to 2012, you have 2 year to beat everything lol

      Delete
    6. @edward I sent but not received an answer so far!
      @dneng I looked your message too late, had already reinstalled the game :-(

      Thanks for the replies

      Delete
    7. dneng, thanks for your info.

      It may make sense now. The game play time has been flagged. If you have changed the time system. Then you might not be able to revert back. Either to make it 'further future', or to make it 'further past'.

      (I haven't tried that)

      Delete
  41. 5-3 marco and Tarma only
    5-4 Trevor and 3ton utility truck only
    5-5 Ostrich slug, sv001 and Trevor
    6-3 Ostrich slug, sv001, sandbag and Trevor
    6-4 Ostrich slug, Trevor and sandbag

    ReplyDelete
    Replies
    1. Hi Hugo, thanks for your patience in sharing your game play details!

      Delete
    2. 6-2 ostrch and sv, 1 charge atack. No ap up. Seems trvor no nesesary

      Delete
    3. I have confirmed the following:

      "6-4 Ostrich Slug, Trever and Sandbag"

      Delete
    4. In fact here are the details for 6-4:
      My Deck:
      Position#4: Trevot
      Position#5: Ostrich Slug
      Position#6: Sandbag

      I started 6-4 by summoning Trevor then Ostrich then Sandbag and I kept summoning them as they died periodically (ostrich died a bunch of times). I DID upgrade base but not to max, I did not use 'metal slug' attack and I did activate soldiers skill. A grip of times....

      Delete
  42. world 1, area 10, stage 2 - no Metal Slug attack.

    Trevor now down to 1500 HP :(

    ReplyDelete
    Replies
    1. o? Which version is your Metal Slug Defense game?
      I just checked that the Trevor's HP is still 2000. v1.3.0

      Delete
  43. I've personally managed to confirm the following:M.S.D
    1.maximum unit type used(no more than 4)
    2.fastest time
    3.use whole deck no more than twice.
    4.protect secondary(only one unit type can be sacrificed a.k.a. the meat shield)
    5.no sandbag
    6.rise AP(does not have to be max).

    ReplyDelete
  44. I got all pow's in 7-1 by following the comments above and doing the following:

    -Not activating special abilities
    -Not using Metal Slug
    -Not upgrading base
    -Only used DI-COKKA and SV-001
    -No casualties

    ReplyDelete
  45. You remember the conditions to save the pows in Emergency mode?

    ReplyDelete
    Replies
    1. Not really... Have you tried all the conditions mentioned above?
      Which stage you have problem particularly?

      Meanwhile, i would better organize this post so that the contributions of other player would be visible to everyone.

      Delete
    2. World 1,West Asia, stage 3 and 4

      Delete
  46. Stage 7-2

    I followed Hoong Yi's advice (above):

    "summon all units only once to free 1 POW. I have tested that and it worked... I realised that I had 0 casualties for that round too"

    What I did to get a POW:
    -Deck: Clark, Ralf, Trevor, Sandbag and SV-001 (in that order)
    -Did activate special abilities
    -Not using Metal Slug
    -Upgraded base
    -No casualties
    -No repeats (summoned each character only once)

    ReplyDelete
  47. I followed Hoong Yi's advice (above)and tried a couple of things for myself:

    Stage 7-3, I got two POW's

    "u need to not use the special skill of a soldier.. That one and possibly not using the Metal Slug Charge as well.."

    What I did to get POW#1:
    -Deck: Clark, Ralf, Trevor, Sandbag and SV-001 (in that order)
    -Did not activate special abilities
    -Not using Metal Slug
    -Upgraded base
    -Used each unit several times

    What I did to get POW#2:
    -Deck: Clark, Ralf, Trevor, Sandbag and SV-001 (in that order)
    -Did not activate special abilities
    -Not using Metal Slug
    -No base upgrade
    -No casualties
    -No repeats (summoned each character only once)

    ReplyDelete
    Replies
    1. Thank you for so much details. I think i should find a way to improve this post such that all your feedback (and the others) would be visible to other players.

      Delete
    2. How about a little poll on what people did?

      Delete
    3. Thanks for your suggestion. (but i am afraid the implementation might be a bit complicated)
      I would go for a much simpler way soon. :)

      Delete
  48. Stage 8-3

    I tried following Hoong Yi's advice (above):

    "Minimum soldiers summoned worked for World 1 Stage 8-2! Tried and tested! it worked"

    It did not work for me!
    (I used Clark, Ralf Trevot combo, summoned each only once, no powerups, no upgrades, no metal slug, and then tried the opposite with upgrades, powerups, metal slug activated and summon them several times, none worked)



    What I did to get a POW:
    -Deck: Non-store character
    -Upgraded base
    -No metal slug
    -used special character abilities
    -summoned characters several times

    ReplyDelete
    Replies
    1. This comment has been removed by the author.

      Delete
  49. After trying everything in this post and getting nothing I just confirmed that to release the last prisoner in east Europe world 2 emergency stage 1 you must survive for at least 3 mins. This explains why people think the 'no blue special ability' condition exists - it doesn't. I use it in every game.

    ReplyDelete
  50. After again trying everything in this post and getting nothing I just confirmed that to release the last prisoner in east Emergency Wednesday Boss stage 2 you must defeat portal before boss is killed.

    ReplyDelete
  51. Edit: just realised that the Boss portal condition had already been suggested. Apologies there

    ReplyDelete