The following are known GameShark Codes for Rollcage Stage II on Sony Playstation (PS1).
These codes were also known as Action Replay Codes and in most cases will work on both devices.

These codes are for the U.S. version of the game.

• Quick Win
  E00D23F8 0000
  300D23F8 0003
  Note: GameShark Version 2.2+ Required
• Quick Max Score
  80019ADC FFFF
• 99 League Points
  30019A0C 0063
• Lap Time Is 0:00:00
  800B2D04 0000
• Unlock Everything
  80019DEC 2000
  80019DF0 005A
  80019DF2 0000
  80019DF4 0000
  80019DF6 0000
  80019DF8 0000