Cheats & Cheat Codes Unlock USA Extreme Bike On the GAME MODE screen, enter the code RUBBABUBBA R - Right on D-pad. U - Up on D-pad. B - B button. A - A button. Code: Description: RUBBABUBBA Unlocks USA Extreme Bike   Hints & Strategies USA Extreme bike At the "Game Mode" screen, press Right, Up, B(2), A, B, Up, B(2), A to unlock the USA Extreme bike. 50th Anniversary bike (yellow/white with black bar stripe) Set your season to 2005 under the "Season" option. Then, win a Quick Race with Valentino Rossi at Laguna Seca to unlock the 50th Anniversary bike (yellow/white with black bar stripe). Set your season to 2005 under the "Season" option. Then, win a Quick Race with Valentino Rossi at Laguna Seca to unlock the 50th Anniversary bike (yellow/white with black bar stripe). 50th Anniversary bike (red/white/green) Set your season to 2005 under the "Season" option. Then, win a Quick Race with Valentino Rossi at Valencia to unlock the 50th Anniversary bike (red/white/green).   Find this article at: http://www.strategyinformer.com/xbox360/motogp06/cheats.html