Cheats
On the title screen:
10.000: Down, up, left, down, right, up, square, triangle.Change of infinite team: down, up, up, right, left, left, right, square.Infinite nitro: left, up, left, down, left, down, right, square.Speedbreaker Infinite: Down, right, right, left, right, up, down, square.Unlock logos: right, up, down, up, down, left, right, square.Unlock special logos: up, up, down, down, down, down, up, square.