Event 37: The Pirate Airship
From SmashWiki, the Super Smash Bros. wiki
The Pirate Airship (空飛ぶ海賊船, Flying Pirate Ship) is the 37th solo event match out of a total of 41 in Super Smash Bros. Brawl, which is unlocked along with Events 29-36 and 38-40 after all playable characters are unlocked. The player plays as Toon Link on Pirate Ship and must KO two Yoshis (a red Yoshi and a dark blue Yoshi) when the whirlwind picks up the ship into the sky. If a Yoshi is KO'd when the Pirate Ship is on the water, they are infinite and respawn at 0% damage.