maybe this is one of your first games that you have ever made so here is some advices :
you have to tell the player what he should do, when I played the game I was just jumping and trying to kill them but It didn't work so well .
second you always need to look for bugs, and let other people try it so that you know if the player knows actually how to play
you will get better by time so don't worry you did better than a lot of other people in the jam
and I hope you check my game :3 https://itch.io/jam/cgj/rate/477007