I didn't experiment with the various mutations much, I just stuck with the wings for the entire game. Cool ideas, but It's easy to miss gems when you come ot a fork in the road, not knowing which way is the goal and which way is a single gem can lead to a lot of backtracking when the player makes it to the end of the level while missing something. I like the artwork, the blinking eyes on the characters is a really fun idea. Cool game.