Koopa Kappa is a Bowser minigame found in Mario Party Advance. It is played at Bowser Hideout in Shroom City, where Bowser challenges the player to beat it after winning his card game. Winning Koopa Kappa gives the player both the minigame and two Gaddgets, Faux Flame and Hourglass.
The player must drop capsule lids on Koopa Kids as they travel on conveyor belts, pressing the buttons displayed on their capsules when they reach the area indicated by the green arrows. There are two conveyor belts; the Koopa Kids going along the top belt always are inscribed with one of the shoulder buttons, and the ones along the bottom and . The player must cap 40 Koopa Kids in total to win.
When a capsule is dropped on one side, the player must wait for a moment before they can drop another; dropping the incorrect capsule on a Koopa Kid will not trap them. If a Koopa Kid makes it to the end of a conveyor belt without being trapped, they head into the room the player character is in and press one of five plungers. If all five are pressed, the barrier protecting the player rises entirely as they are blown up, ending the minigame in a loss.
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