I bet this is free because Yoyo Games STILL DIDN"T IMPLEMENT OUYA IAP SUPPORT ON GAME MAKER STUDIO.

This is get extremely annoying at this point.

But oh, this is not the Game Maker forum, so there's no point in complaining here.

Well, Super Crate Box.

This game is BRILLIANT. I downloaded it for Ouya and couldn't stop playing it for more than one hour. Simple game, but incredibly fun to play!