Kingyo Chuuihou! Wapiko no Wakuwaku Stamp Rally! is an Action GB game with plenty of minigames. In this game, the "Wakuwaku Stamp Rally" will be held at the new Inaka Junior High School, and Wapiko, the character controlled by the player, wants to be the first to get all the rally's stamps.

The player must control Wapiko and clear a set amount of minigames, that appear when talking to NPCs or entering certain doors. Clearing minimages will make the player earn stamps, that they can exchange for points. Once they get a certain amount of points, they can go to the gym and play the final minigame.