Monster Rancher Advance

The gameplay revolves around raising and battling monsters. Players create their own monsters by entering letters, numbers, and punctuation characters into the in-game shrine. As they progress through the game, they can access more spaces to enter words or characters. Monsters can become hurt or ill and must be treated for a fee at the Hospital, which also offers free checkups. Players earn money by winning tournaments and finding valuable items on expeditions.

The game features a variety of multiplayer modes, including 2-Player mode where players can battle each other's monsters via the GBA link cable. Single monsters can face off against each other, or players can set up tag team battles. The game also includes several improvements over its predecessor, such as a counter system added to battles, RPG-style expeditions, and a more complex coaching for pay system.