VTELO: All normal tracks available
 INVER: Reversed tracks available
 MONTY: Obstacle graphics are changed
 JOINT: More obstacle graphics
 CLOCK: Turn off the clock
 TAZOR: Makes the bullet car available
 ABURN: Other cars become bullet cars.
 
 (Note: This cheat can't be undone without a reinstallation or backing
 up the Choice.dat file - BACK IT UP!)