The following codes are for the Dev only. Press the '~' (tilde) key and enter the following codes to unlock the corresponding effect in the game.

Unlock Invincibility:
Cheat_deathless_player 1

Unlock Super Jump:
Cheat_super_jump 1

Spawn ALL Vehicles:
Cheat_all_vehicles

Spawn ALL Weapons:
Cheat_all_weapons

Spawn Warthog:
Cheat_spawn_warthog

Unlock Infinite Active Camo:
Cheat_active_camouflage (active until Shot, Level ends or you Quit).

Unlock Infinite Ammo:
Cheat_infinite_ammo 1 (never lose ammo but Plasma guns will overheat).

Unlock Bottomless Clip:
Cheat_bottomless_clip 1 (have to realod but the Plasma guns don't overheat).


Hint:
Enter the 'Bottomless Clip' and 'Infinite Ammo' cheats together to have Plasma guns that never overheat and have infinite ammo.

Note: The following cheats will only work for the Custom Edition of Halo: Combat Evolved.

Open the properties window of the Halo shortcut and add ' -console –devmode' after the target. Start the game with the -console -devmode command line parameter. During game-play press '~' to display the console window, then enter one of the following codes to activate the corresponding cheat function. These codes do not work in online games.

Set game speed game: speed <0-20>

Clear console window: cls

Super jumps: cheat_super_jump <0 or 1>

Possess touched character: cheat_bump_possession <0 or 1>

Invincibility: cheat_deathless_player <0 or 1>

Teleport player to current camera position: cheat_teleport_to_camera

Instant deaths for enemies that see player: cheat_medusa <0 or 1>

Spawn Warthog: cheat_spawn_warthog

Spawn all power-ups: cheat_all_powerups

Spawn all vehicles: cheat_all_vehicles

Spawn all weapons: cheat_all_weapons

Unlimited ammo: cheat_infinite_ammo <0 or 1>

Unlimited ammo and no overheating for weapons: cheat_bottomless_clip <0 or 1>

Quit game: quit