Screamer Cheats (PC)

Type these in at the menu screens.
  VTELO - All normal tracks available
  INVER - Reversed tracks available.
  MONTY - Obstacle graphics are changed.
  JOINT - More obstacle graphics
  CLOCK - Turn off that clock.
  TAZOR - Makes the bullet car available.
  UPDOW - Turns graphics upside down. (Not verified.)
  MIRRO - Mirror mode. (Not verified.)
  ABURN - Other cars become Bullet Cars. Careful, you can't undo this without a
reinstallation

Type themin at any menu 

  VTELO.......All normal tracks available
  INVER.......All normal plus inverted tracks
  MONTY.......New obstacles Set 1 (see below)
  JOINT.......New obstacles Set 2
  CLOCK.......Stop clock
  TAZOR.......Bullet car available
  ABURN.......Race against other bullet cars **
  UPDOW.......Turns graphics upside down
  MIRRO.......Mirror mode