The music and graphics was amazing!
It felt really intuitive that you had to click the ghosts before they reched a pumpkin, but it took me a while to realize you only needed to hit them once...
I also think the game could benifit from getting increasinly harder. I realized that there was only ever three ghosts on the screen at a time. I think it would be a good idea to have 4 ghosts at a time after level 30, then maybe 5 at a time at level 60?