Hamster Club 3 on Game Boy Advance is a hamster breeding simulation game. Unlike its predecessor, this game focuses on simulating pet care, eliminating the quirky aspects and mandatory mini-games. Players must clean, feed, and play with their hamster to earn stars, the in-game currency. They can then purchase larger cages, toys, and tools. The game features 12 breeds of hamsters and two unlockable exotic ones, along with 200 toys and accessories, with a multiplayer mode allowing visiting friends' cages and playing mini-games.