List of New Super Mario Bros. Wii pre-release and unused content

Beta Elements from the game New Super Mario Bros. Wii.

Propeller Mushroom
The Propeller Mushroom was originally a suit that was a flying P with a propeller at its top.

Level Designs
Many of the platforms were redesigned as many of them were orginally plain in color.

Fire Toads
Originally the fire Toads had caps which had their respective colors reversed with white spots on them. In the latest screens from the games, the Toads instead have red spots on their caps.