Hi-Octane
  
PC/Mac



To access the cheat mode, first press CTRL-TAB when a race has started. This 
  will bring up a slidey puzzle game which needs to be completed. When this has 
  been completed, CTRL-TAB will remove it from the screen. Now enter any of the 
  following codes during gameplay:
Alt-F1: self destruct


  Alt-F2: enemy sweep


  Alt-F3: max fuel


  Alt-F4: max ammo


  Alt-F5: max shield


  Alt-F6: add lap


  Alt-Y: autopilot on


  Alt-C: autopilot off



  


Thanks to Revolution reader M. Colasurdo!