Dr. Mario on Game Boy is the same classic pill-matching puzzle game you remember, just in portable form. You’re dropping colored capsules to wipe out viruses—simple at first, but the speed ramps up fast. The music’s still weirdly catchy, and that little "plink" sound when you clear a row? Perfect.

It’s not as flashy as the NES version, but that doesn’t matter when you’re trying to squeeze in a quick round between classes or on the bus. The controls feel tight, though I still sometimes fumble the rotation when things get frantic. If you’ve got a Game Boy and even a passing interest in puzzle games, this one’s a no-brainer.