This is awesome and lots of fun! My only complaint that the game stays relatively easy and doesn't have a real difficulty curve (at least to me.) It is still really fun though! Please play our game if you have the time!
I already played your game and left feedback. Nice Job!
And you might have been experiencing a known bug where less enemies spawn after each death (can't fix because of jam). I have it set so enemies spawn faster and faster until there is a new enemy spawned every second!