The four players are stationed on a series of conveyor belts, with each of them in a corner of the playfield as blue Lava Bubbles appear one by one and surround it before the game starts. The objective of the minigame is for each player to knock the other players off the conveyor belts within the time limit. In addition to each other, the players must avoid the red Lava Bubbles that occasionally leap onto the conveyor belts to chase one of the players, with up to three being present at most.
The players can stun other players by jumping on them, punching them, or Ground Pounding them. If a player is stunned by a jump or attack, their movement is slowed and their jump height is decreased. If a player is stunned by a Ground Pound, that player will be immobilized for a few moments. In addition, the four rows of conveyor belts will each move left or right at varying speeds, changing direction occasionally. The size of the conveyor belts also decrease as time passes.
If three players are eliminated before 30 seconds pass, the remaining player wins but if time runs out and two or more players remain or all players touch the Lava Bubbles, it is considered a tie.
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