Mappy is this weirdly charming NES game where you play as a tiny mouse cop busting into houses full of thieving cats. Your job? Grab all the stolen stuff they've stashed around while dodging these goofy-looking feline crooks. The cats bounce around on trampolines, which sounds cute until you realize they're basically furry pinballs trying to knock you out.

The first time I played, I just ran straight into a cat—didn't even see the trampoline launching it at me. The controls are simple (just left, right, and jump), but timing your moves between cat bounces gets surprisingly tense. Some rooms have doors you can slam shut to trap them, which feels awesome when you pull it off. Honestly, it's one of those games that seems silly at first but gets weirdly addictive once you get the rhythm down.

Also, the music is an absolute earworm—good luck getting that bouncy little tune out of your head.