Awesome visuals, and great music! Loved the imp transformation, had a lot of charm and it gives a really good first impression!
Had some trouble with the camera, sometimes it would stay up, preventing me from seeing where I would land when jumping, and sometimes it would center, I wasn't entirely sure what this was due to. It'd be nice if the player was able to control the camera position with the vertical arrow keys.
Some of the jumps were pretty hard! But that's mostly due to the fact that I wasn't sure how far I could get past the edge without falling off.
Really solid entry!