I like the mechanic of using yourself as the terrain! I think it's a game that has potential but it does need some improvements:
The character moves quite slow and the gravity seems to be pretty low as well. Perhaps tweak the values.
I want to be able to just walk up these heads instead of having to jump because his hair is blocking me:
There's something happening that stops me from jumping / placing clones when near a wall, not sure what, and I don't mean the black ramp thing that blocks jumping.
Maybe have 3 or more walk animation sprites than just the two, though two may be okay if the character is sped up a little so it switches faster, but at the current pace it would need more to seem more fluid.
Good job on the game so far!