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The Wii version of the game will contain many exclusive features and unique gameplay via the Wii's control system: the Nunchuk is used to control a player's body with the analog stick used to control the direction of the player's movement. FIFA 08 on the Wii features Ronaldinho as the first football player created as a unique and playable mini character. There are two ways to play: in the main game FIFA 08 plays in a similar way to the other FIFA games but using the Wii controllers to pass, shoot and perform trick moves. The second way to play the game features a range of party games: Juggling, Table Football and Boot It with your own Mii. Once you've reached a certain skill level it's possible to unlock Ronaldinho.
taken from wikipedia