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From Unmariowiki

Tigger is a tiger that likes bouncing on innocent peoples heads. He appeared as a boss in Super Blarrio Darknight. He had a springy tail, and Blarrio (Mario's Evil Twin) had to avoid him and suck him up with the Poltregust 34635325. After tigger was defeated, the world seems safe- but then, he came back as an unlockable player in Super Blarrio and Mario: Double Trouble.