Fun!
The story blurb is great! 'Pumpking' is genius! Wish I'd thought of that one myself. :)
The gameplay is a little twitchy. It was hard to judge the difference between when I was going to destroy an enemy from 'landing' on them and when I was going to die for touching an enemy. A death animation and/or fanfare would be a nice addition. Snapping back to start of the level so fast when you die sometimes makes it hard to understand what you did wrong.
The graphics looked good, nice choice of backdrops. They really added a nice creepy touch to the levels.