• The PC custom edition of "Halo: Combat Evolved" includes a developer mode in which you can hack in and create cheats by changing the game code. Open the properties window of the shortcut and add "-console -devmode" in the target line. To activate hacks during the game, press the "~" key and type a command.
  
  

Impervious to Bullets

• Make Master Chief invincible. Type in the code "cheat_deathless_player 1" to activate.
  
  

Spawn Items

• You can use some of these hacks to spawn various items in the game. For example, the code "cheat_all_powerups" will make power-ups appear. Use the code "cheat_all_vehicles" to snag a free ride. Enter "cheat_all_weapons" to score free guns.
  
  

Vision of Death

• Make Master Chief like Medusa. If you input the code "cheat_medusa 1", enemies automatically die if they see you.
  
  

Keep Gunning

• If you use the code "cheat_bottomless_clip 1", you will have unlimited ammunition and never need to reload any of your guns.
  
  

Flea Man

• Activate the ability to make leaps across maps with the code "cheat_super_jump 1."