Love the concept here and really like the intro sequence a lot.
Unfortunately, the level lasts way too long, and this makes the less fun parts of the game more noticeable. Mainly, it's way to easy to reach the minimum kills. Also, only having one sound effect really holds this game back. Additionally, the enemies that do fight back can't hit you if you attack them at the same time, so there is no risk of dying.
That said, these are easy polish fixes/patches, so if this game is something you want to revisit after the jam, I think there's plenty of potential here.