Kero Kero Keroppi no Daibouken is one of those weird little NES gems you’d only find if you were deep into Japanese imports or a Sanrio fanatic. It’s got that classic 90s charm—bright colors, chunky sprites, and Keroppi hopping around like an over-caffeinated frog.

The goal’s simple: rescue Keroleen from a castle by solving action-puzzle stages across seven themed worlds. One minute you’re navigating maze-like platforms, the next you’re piloting a tiny plane or playing what feels like Reversi with extra steps. The lava stages? Brutal. Memorization is key since item placements never change—mess up, and you’ll be replaying the same screen until it’s burned into your brain.

It’s definitely aimed at kids, but there’s a sneaky challenge here if you stick with it. Just don’t expect deep mechanics—this is pure, nostalgic fluff with a side of trial-and-error frustration.