This is a pixel style dungeon puzzle game. Each level in the dungeon is a test of your strategy. If you do not find the exact order of movement, even if you defeat the monster can not enter the next level.
I really like this pixel art style to create the dungeon. The route forward is not unique and you can proceed as you choose. And the first 22 levels can be experienced for free, the following need to pay to unlock the full version. But believe me, the previous levels are interesting enough to keep you happy for a while.