Buff Knight: Where are the hidden artifacts?

I was about to ask this - Where are the hidden artifacts in this Buff Knight game?!

After rounds and rounds of completing the Story Mode and Endless Mode, you will discover that, the first 2 rows of artifacts are revealed in the Story Mode, while the rest are in the second Mode.

The difference is that, only the artifacts revealed by the Endless Mode are 'upgrade-able' through continuous discovery.

However, the myth of this Buff Knight is that, there are 'hidden artifacts' which can only be revealed if you fulfill those hidden conditions. I know that's tricky. Damn the developers :p

And... it is actually revealed by the developers. The game tips are all available in the Buff Knight official site. Here I would list down the Six Rare Artifacts. If you have been puzzled all the while, hope this will come to your aid.

1. Touch the star on the night sky.
Beware the bright star on the night sky. Touch it and an artifact would be immediately unlocked.

2. 10 combos killing 10 enemies in a row
Usually this can be achieved by using the magic cast (which will cause splash attack), especially when there a number of enemies approaching you at the same time.

3. Touching 10 wooden barrels in a row without touching any jar
This is so - damn - tricky! How could anyone realize this hidden condition of artifact?

4. Killing a Pharaoh (the golden headdress mummy) with juggling
I admit i swear when i read this. But yes, this is another secret of the hidden artifact.

5. Skipping 10 treasure chests in a row and unlock the 11st treasure chest
This is as tricky as the 3rd condition. It is so tempting to touch the treasure chest especially when you have so many keys on hand!

6. Using Health Potion when you have full HP in a rainy day
Again, it seems ridiculous. I guess you won't try this before reading this right?


Regarding which condition is meant for which artifact, i have no justified answer here. I have tried the 5th condition - skipping 10 treasure chests in a row. That rewards me an artifact of "Increase 30% defense".