Been a little while since I last updated my progress, but I've been working super hard to meet the jam's deadline. I actually started a new job in the middle of this, which is great (of course) but it cut into my dev time severely. I'm confident I'll have a finished prototype ready by the end of the jam, though I'm not entirely sure what the state will be. Here's how the game looks now. (This GIF looks better.)
It's 100% functional and ready to play (for the purposes of the prototype, anyway), so what I'm focusing on next is an entire graphic overhaul, a bit of music and FX, and a fully integrated beginning and end. It's a lot, but I think I can make it happen with a couple more late nights.
Fingers crossed!