I can immediately tell this is an instant-classic SBIG Jam entry at a glance. The art style, sound design, and overall jankiness hit the perfect notes.
Honestly, I think the length and complexity is perfect as-is. It sticks around long enough to be a good bit of fun but not so long that it starts to drag on, and the difficulty hits a solid balance of having some challenge and tension but not devolving into a tedious chore.
I think my one criticism is that the modifier implementation feels weak to me. I see what the intent is, and while it's certainly extensive, it doesn't really cross into excessive territory in my mind.