Like the other Arctic mascots and snow-themed mascots, the Seal plays in the snowy terrain. During gameplay, a red ball may appear. The player may choose to get it or not. If they choose to get it, the Seal will play with it by bouncing the ball on its nose. Either randomly or upon death, the ball will drop and bounce away.
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The Seal is a secret mascot, which means it cannot be unlocked through the Prize Machine. To unlock the Seal, the player must play as the Polar Bear and complete all five missions to collect trash in the terrain. After finishing the 2000 mission, the Seal will be unlocked.