Pretty fun, some nice polish. Just a few things I notice:
- Controls are nice and tight, but maybe consider making space-bar jump and like left control dash or something.
- That last stage is brutal. Maybe slow down the projectiles a smidge.
- On level two there's a hidden little alcove with a torch to the right of a long drop to the pumpkin below to the left. Maybe make a hidden passage there so you can get to one final (or secret) candy corn? Maybe make the passage entrance a slightly different tile with a crack or something to give a hint.
- Love the wall-jump mechanic. Would be nice to get to use it more.
- Final stage has a leap of faith with spikes on either side. Maybe put an arrow in the middle to guide the player to that.