MotoGP (2006)

MotoGP is a racing game that was initially released by Namco for the Sony PlayStation Portable in Japan on August 24, 2006, then later for the United States on September 26 of the same year, and finally in Australia and the European Union on October 26 and October 27 of the year respectively; the game is the fifth and final entry in the MotoGP series, but after Namco merged with Bandai and became Bandai Namco Games a MotoGP arcade game was also released in 2007. This game, for the fourth and final occasion, features the then-new season statistics, along with a large amount of unlockable features (including a new "One-on-One Mode", hidden riders and MotoGP videoclips) - and it also features a wireless multiplayer mode (called "Ad Hoc Mode") that allows a maximum of eight players to play simultaneously, similar to the "Online Play Mode" that appeared in MotoGP 4.

Story
This is taken from the backs of the US and EU versions' boxes, the fronts of which are shown below:

RACE RIGHT ON THE EDGE! The officially licensed game of the MotoGP World Championship roars onto your screen, featuring all the 2006 MotoGP class riders, including Valentino Rossi, Nicky Hayden and Daniel Pedrosa - plus bonus 2005 season data. © NAMCO 2006