@Darerd: I'm not saying you should... it's your level. I just thought everything was a bit slow. Not laggy, just slow. Not bad at all, just slow. This is a cool, very nice slow level. :D
I like the ideas and the execution, and the artwork in the background is nice. Your piston in the middle of the level, however--the one that slides through the three hedgehogs--needs to be *much* faster. Overall, a solid level. Nice!