Great work on this project! I can't believe that ya'll did this much work in such a short time frame!
Base gameplay and loop are great, and I love the store with purchased upgrades and skill point upgrades as well!
Too bad for the bugs; I got up to wave 4 and was rolling until it wouldn't let me advance. I'll try again later if you think that sometimes it will let you advance.
Would love to play an updated copy after the jam once you iron some bugs out, etc.