Cute graphics and music. I like the concept of zapping from pumpkin to pumpkin.
For me the difficulty ramped up too fast. I simply could not get past the fog tunnel where you have to pick up yellow seeds(?) to extend the ghost timer. The ghost was moving too fast and the timer was too tight.
Also, the parallax is great but I think you should lock the vertical movement or significantly reduce it, as it was causing a bit of nausea.
Still, lovely concept. Well done!