4 WHEEL THUNDER UNLOCKABLES
Extra tracks in championship mode
Finish championship mode to unlock the Atlas Sandstorm, Corsica Rain, Far West Night, Iceland Snow, Scandinavia Storm, and Norway Night tracks.
Extra tracks in outdoor arcade mode
Finish outdoor arcade mode to unlock the Scandinavia, Jordan, Greece Sunset, Norway, Iceland, Atlas, Alps, and Canada Rain tracks.
Extra tracks in indoor arcade mode
Finish indoor arcade mode to unlock the Indoor Scandinavia, Indoor Far West, Indoor Iceland, Indoor Atlas, and Greece Daylight tracks.
Two player tracks in one player mode
Finish any of the two player indoor or outdoor track series, then save the game. Enter one player mode to access all of the series that were unlocked in two player mode.
Extra monster trucks
Finish championship mode to unlock three hidden monster trucks.