Shellshock PS Cheats

Debug Menu:


When the Core Design copyright screen appears, quickly press Up, Down, Left, Right, 
Down, Down, Right, Right, Square. A debug menu will appear. 
 Invincibility:


  Start a game then quit by pressing Start+Select. Now at the Main Title Screen, 
  press Up, Up, Up, Down, Down, Down, Right, Right, Triangle. You'll hear a sound 
  to confirm correct entry.
 Bonus Mission:


  At the Briefing screen, open the locker and enter the code 4L2CZCQKDAABACQDB. 
  You'll begin the extra mission.





 Thanks to Revolution readers Daniel Fortea and Nate Barnes!