Some progress...
I'm usually a little further along than this, but I think I scoped appropriately given the late start, so I'm confident about having something to show at the end. Anyway, here's a little progress picture!

The temptation to add to the scope is real. Buyable upgrades, voice lines, extra abilities... I'm going to have enough of a job just delivering an MVP. Nonetheless, I think the core is solid. It feels like a flash game I'd have played on Miniclip, years and years ago - simple gameplay, visually funny.