I wasn't able to complete the tutorial. The wall-running was too hard for me. LOL
In general, having to control WASD plus Space-Ctrl-Shift-Alt all with my left hand is a lot. My fingers were getting all jumbled up. (I don't normally play this kind of game)
I started over, and tried the "main" part of the game. I didn't get too far there, either - I wasn't able to jump up all the way to the purple pumpkin. I liked the look of the spooky trees, though.
It's pretty cool that you recorded yourself on guitar. Although I didn't feel like it really matched the mood/style of the game.