This appears to be your first solo project and it looks like you have a good understanding of how to make games and how to make them fun. Sometimes, simple works and that's what you went with, which I have absolutely no problem with. I agree with the other posts that this could use some polish, but otherwise, I think you're off to a good start, here.
Keep up the good work! I wish you the best and hope you manage make 1st place in this jam!
Notes:
- Difficulty is kinda all over the place, which makes it inconsistent to try and get a serious score.
- Bonus Point: Wizard. Everyone likes wizards, right? :D
- Bonus Point: I like it when the theme is as much a mechanic as it is a graphic. Nice! :)