Not bad, despite being incomplete. I could sort of see where you are leading with the theme: go somewhere, something changes. I would have enjoyed more of it though.

actually i was going for something simpler, the graphics would change as you progress through the game, thus "evolve". Anyways im going to have a post LD update sometime.

The movement is a bit dull -- slow, no horizontal momentum, unusually high non-variable jumping. None of these is necessarily bad on its own, but the combination you have here doesn't seem like it'd lead to interesting platforming. You may want to rework the movement if you update the game. Or, maybe the character's abilities can change whenever the graphics change.

Erm, am I missing something? I got to the bit under the first area (past the white laser) but that's as far as I can get. There's the thing at the bottom and the greyed squares which I'm sure do SOMETHING, but I can't figure which key to press

Actually No :X. Its the debugging level, yeah i am reworkign all of the physics, getting a proper one fitted as soon as i can. But yeah, i plan on adding better physics, a set of levels and a level editor