Left arrow or "a" to rotate it clockwise. Right arrow or "d" to rotate it counter-clockwise. Dodge the obstacles. The shapes are: -Upside down "t" -Line (horizontal) -Line (vertical) -Circle -Box -Plus sign. There are 2 modes, Survival and Impossible.
I got the inspiration form playing with circles online. This seemed cool, and I made a game into it. All sprites are by me. If you happen to beat my High-score on survival, I will follow you. If you beat my High-score on impossible, I will love and favorite one of your projects.