really cool idea!
my only problems were with the controls- and a lot of that could be that i'm just not used to "w" being the jump button.
despite that, there were a few times when i felt like i was almost bouncing off of walls and stuff. one time i even "bounced" off a wall into a saw and died :(
aside from those problems, i think the game is a pretty good little puzzle game!
PS i also think bubbly tim looks pretty awesome.