That was a very inventive implementation of the jam theme! I also like the visual style of the game.
Main nitpick is with the complete lack of any audio - which lead to quite a few failures from enemies reaching the middle of the thing whilst I was looking away from it, either dealing with other enemies or trying to enhance my defences. I also wasn’t a fan of the rather dramatic camera sway as well, felt a bit unnatural.
Still, pretty good work, given the time constraints.