High School! Kimengumi is one of those weird, charming Sega Master System titles that never left Japan. It's based on a manga about a group of misfit students, and the game plays like a mix of adventure and mini-games—think River City Ransom but with more classroom antics. You'll wander the school grounds, get into fights, and stumble into random events that play out like little interactive comic strips.

The controls take some getting used to (typical for an '80s Japanese-only release), but there's something oddly satisfying about figuring out how to navigate the school's quirks. The pixel art has that classic Sega charm, with exaggerated expressions and goofy animations. Just don't expect much hand-holding—half the fun is fumbling through the Japanese text and seeing what ridiculous situation your character lands in next.

If you're into obscure retro games with personality, this one's a time capsule worth digging into.