I'm afraid I was unable to play past the first couple of levels as I'm on a laptop so I can't use the mouse and keys at the same time but I like the concept of this game a lot.
I felt like the character was too slidey though as when I got the cookie in level 1 I slid off the platform of level 2 without pressing anything so, even though there was no in-game consequence, it was a death that I had no control over. I also think you really needed to add coyote time as that would help the player at least mitigate sliding off platforms somewhat.