AEROGAUGE UNLOCKABLES
China Town Jam track
Finish Grand Prix mode in first place on each track under "Expert" difficulty.
Neo Speed Way track
Finish Grand Prix mode in first place on each track under "Intermediate" difficulty.
Nintendo 64 controller vehicle
Start playing the game in time attack mode. Keep racing until obtaining a time that ends in .064 seconds. Press R when selecting this vehicle to change colors from red, green, blue, black, or yellow.
Dominator vehicle
Finish the game in first place with the Black Lightning under "Expert" difficulty.
Prowler vehicle
Finish the game in first place with the Hornet under "Expert" difficulty.
Reaper vehicle
Finish the game in first place with the Shredder under "Expert" difficulty.
Vengeance vehicle
Finish the game in first place with the Avenger under "Expert" difficulty.
Higher speed
Unlock all the secret tracks and vehicles, then finish the game in first place in expert mode with the Reaper. You will now be able to go 500 mph with the Avenger.
Every track and vehicle
Hold L + R + Z on controller two before the title screen appears. Keep those buttons held, then quickly press and release Up + C-Down on controller two when "Push Start" flashes on the title screen. Then, press Start on controller one before the title screen disappears.
Alternate vehicle color
Highlight a vehicle on the selection screen, then press R.
Quick start
Hold A + B before the race begins. Release B immediately after the commentator says "Ready".
Turbo
Start playing the game and hold A to speed up. Hold Z and press Analog-stick Left or Analog-stick Right, release A and Z, then quickly press A + Z. You will hear a sound if you have entered the code correctly.
Faster Grand Prix credits
Press Start when the credits appear after a Grand Prix.