Three new trucks
Complete championship, arcade, and indoor modes to unlock one new truck for each game mode completed.
Extra Tracks
Complete championship mode to unlock 6 more tracks, arcade mode for 8 more tracks, and indoor mode for 5 more tracks.
Full pause screen
As with most other Dreamcast games, hit X+Y at the pause screen to remove the menus from view.
Jackpot Cheat
After finishing a race in Championship mode, save your game in case a you get to try for the jackpot. If you don't win it on the first try, simply reload your game in the options menu and keep trying until you win.