Cool game! Defo has potential - can see how it fits the theme and I like the lore & role-reversal of you being the skelly. Seems like you're keen to go further with this in the future, so some feedback (in no particular order):
- Minions aren't distinct enough from enemies. It's hard to tell what's trying to kill me!
- It feels a little claustrophobic. Shoot 'em up survival games benefit greatly from open space for the player to navigate.
- Some sense of progression would keep this fresh, and fits the genre well. ATM it feels like the only changing element with time is "more enemies".
Without the above, it gets a bit one note after a while. Not entirely your fault; it's a difficult genre to pull off.
I wish you the best of luck with this & hope to see it again someday! :)
EDIT: One final thing. Maybe wait for the jam to be over before making changes! It's not in the spirit of a jam to do so midway based on the feedback of other creators :)