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A Mini Bowser Jr. is a wind-up toy modelled after Bowser Jr. and makes his first appearance in Mini Mario & Friends: amiibo Challenge. He's only unlocked via Bowser Jr. amiibo. He has an unique ability that other characters don't have which is crossing spiked floors without getting hurt and loss a life thanks to the mini Junior Clown Car he is always riding. Every time he steps on spiked floors an helicopter sound can be heard and dust is blown from the Clown Car's propeller.