Nice job with the visuals: menu, artwork, and in-game texts. Also the controls feel smooth compared to some of the other "survive the mobs" games in this jam I've tried so far.
When there are a lot of enemies punching, the punch sound effect feels overused. 2 things come to mind to help mitigate that: 1) randomize the pitch of the sound effect to be slightly higher or lower to give variety, 2) Maybe have the sound effect happen when it hits something so that it doesn't fire off as often.
Congrats on the submission :)