Play Medarot - Parts Collection 2 (Japan) Online

Medarot: Parts Collection 2 came out in 1999 for the Game Boy, published by Natsume. It was part of that wave of late-era Game Boy titles that really pushed what the handheld could do, especially with turn-based combat and customization. If you were into collecting and building things, this was one of those games that just ate up hours.

You control a kid who collects, assembles, and battles with small robots called Medarots. The main goal is to gather parts by winning fights and exploring areas, then build the strongest team possible. Signature mechanics include part-swapping to customize your Medarot's abilities, and turn-based combat where you choose actions for each of your robot's limbs. The pacing is methodical; you spend a lot of time in menus tweaking your builds, and the difficulty can spike if you don't plan your loadouts carefully. It feels like solving a mechanical puzzle with your fists.