I think it is a cute game, but for me personally, I don't really like the slippery controls. For a game about precision movement I feel like it should be a bit snappier. I've walked next to a spike, only for the character to keep sliding into it.

I also do not like how holding the jump key causes the character to keep jumping, I think for a game like this it would work better if you had to press the key again, I don't know. The only reason I bring this up, is because I've accidentally hit my head on spikes because the character keeps jumping when I didn't expect them to.

Just my personally preferences though, so take it with a grain of salt.

Keep up the good work.

I played on the downloaded version. 

I like the music and the scene transitions. Seems like it could be a fun little game. BUT when I press Q on level 2, the game crashes. E works fine, but not Q. Log files are empty.

If you fix this, let me know and I'll give it another go.

EDIT: Doesn't seem to work on the browser version either. You probably should have done a bit more testing.