Successfully complete the game in Rival Chase mode to unlock a Tornado trucker in versus mode. Note: A new character is unlocked each time this is done, for a total of five hidden truckers.
Successfully complete the game in King Of Route 66 mode.
Route 66 Disco option
Successfully complete the game in Queen Of Route 66 mode to unlock the "Route 66 Disco" option at the "Corkboard" screen. Collect emblems during game play to unlock more disco options.
Queens in bikinis
Get a "Gold" rank in each of the eight mini-games to see the Queens of each states in bikinis during Route 66 Disco mode.
Complete challenges in the mini-games to earn Medals for the medal case.