Interesting twist on the classic collectathon!
The Halloween art is terrifying, but the audio is bland, you should add variations (in pitch for a quick-win) for the jump sound to make it less repetitive, and you can find a good free copyright spooky background track to add to the mix.
Despite that, I enjoyed the strategy, but didn't finish it because of jumps I thought I couldn't do.
Congrats for the jam!