FC Genjin—or Freakthoropus Computerus if you're feeling fancy—is one of those weird, charming NES games that never left Japan. You play as a caveman who somehow ends up inside a computer, jumping between circuit boards and dodging glitchy enemies like floating floppy disks and rogue pixels. The controls take a second to get used to (that slide when you stop running still catches me off guard), but once you adjust, it's got that classic NES platformer feel—just with way more surreal 8-bit computer imagery.

Honestly, half the fun is seeing what bizarre sprite they'll throw at you next. One minute you're hopping over scrolling lines of code, the next you're getting chased by a giant, angry cursor. It's not the deepest game, but it's got personality for days. If you're into retro oddities, this one's a trip.