This was a fun, hard, gimmick platformer game. The gameplay and physics are pretty good, and the level design was mostly pretty good. There was enough variation in the ball mechanics that each world felt unique and the game didn't get stale for it's short runtime, and there was some really good music too. I enjoy the art style too. Not my favorite hard platformer, but it's a lot of fun. It even has a break the targets mode, which is cool.