A classic idea with a fun rendition of the jam's theme. A few audio hiccups here and there, and definitely pretty easy to get overwhelmed even on the second wave and have the battery surrounded by zombies without a fast enough method to clear them out, but high score nature and quick respawn makes that all more agreeable. Still, I can't help but imagine some kind of AoE electric discharge that you use at the expense of fuel, or maybe having the pea-shooter style gun be something you have access to while disconnected that stuns the zombies, while being connected to the battery gets you a more powerful electric strike. Or maybe another direction you could iterate on, who can say!