Huh, had to look up a tutorial for the very last level and it would appear I took the long way around for the two 'blank' levels.
Anyway you did a really smooth job with the programming. I really like the slipping and sliding and the wall jump mechanic is just comfortable to use. The obligatory puzzle element was fun, although sometimes frustrating and a little gimmicky due to it having the whole physics flair going on - sometimes made things harder than they should have been.
You really could have stood to improve the graphics. They're simple, they're cute, but they're OVERDONE.
The real reason I'm docking so many points is because I'm sick of programmers dick riding The Company of Myself with these simple 'symbolic' puzzle platformers with crummy graphics, melodramatic and even more melodramatic one-liners scattered throughout the levels. At least The Company of Myself and Fixation had a plotline. This is just a bunch of drivel.
Another really big thing that bothered me is that with such simple games you really lose a lot out of the experience when it's just one level after another. There's a heavy puzzle element, sure, but it would be nice to see some new mechanics partway through the game, or even an open-world kind of environment.
This is not a bad game but conceptually it is the most infuriatingly jump-on-the-bandwagon game I've seen in a while.