Thanks a lot! I love creating some wierd stuff. Concept came to me in 10 minutes. I was like "What is ancient and gaming and can be collectable? Tetrominoes!". After that I could not decide if it should be topdown or platformer. I don't know if my choise was right, so after Tetroidvania is realeased you should wait for Tetroid - platformer with tetrominoes' powers :D