The objective is to Ground Pound the Wiggler's body segments while avoiding any Piranha Plants, which deduct one point from the score upon contact. Ground pounding a segment with a purple marking on it gives the player one point, while ground pounding the red segment gives the player three. Players can also Ground pound other players to slow them down.
When its health is halfway depleted, Wiggler becomes enraged. It turns red and moves much faster than before, making it harder to Ground Pound a body segment. In addition to that, three Piranha Plants appear at once instead of just two.
After the final attack has been made, the Wiggler turns yellow, falls to the ground upside-down and then explodes, releasing 32 Mini Stars.
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