World 6-Airship (New Super Mario Bros. Wii)

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Template:Levelbox This level features Mecha-Koopas and has the first appearance of Rocky Wrenches and the Mario Car. This is also where the player fights Bowser Jr. for the second time. Other dangers in this level are a series of wheels, which the player needs to jump on to advance. In Bowser Jr.'s fight, the player must climb into their own Mario Car and knock Bowser Jr.'s Koopa Clown Car into the electric fence on the walls of the room or jump on him 3 times (only with the Propeller Suit). This is also the 50th level in the game.