Mario & Sonic at the Olympic Games/Beta elements

This article pertains to the beta elements from Mario and Sonic at the Olympic Games.

Unplayable characters (Wii)
In-game data reveals that Silver, Jet, Cream, Big, Espio, Rouge, Donkey Kong, Birdo, and a Goomba were planned to be playable characters, but they are only accessible through hacking. Jet, Donkey Kong, and Silver seemed to have been completed. However, Birdo will be in a T-pose when loaded into the game.