Othello World on the Game Boy is exactly what it sounds like—classic black-and-white reversi, but portable. The AI isn’t too brutal, so it’s great for quick matches when you’re waiting around. The board’s tiny, obviously, but after a few turns, you stop noticing the pixels and just focus on flipping those tiles.

It’s Japan-only, but since the game’s all about placing discs, the language barrier doesn’t matter. I lost my first match embarrassingly fast, but once you get the hang of corner control, it gets satisfying. Perfect for killing time without needing reflexes or luck.