All mission maps
Create a new profile, name it "VENGAR", and start
a new game. A message will appear to confirm correct code entry.
All of the missions in the game will be unlocked and available
at the start.
Stronger characters
Create a new profile, name it "MATTSOELL", and
start a new game. A message will appear to confirm correct code
entry. When playing under this file, Tex and Brutus can take more
than three direct shots of the rocket launcher without being near
death. Note: "MATTSOELL" is the project director for
Bungie who made Halo. Note: You must watch the full ending
once, have all the DNA canisters, and at least one open campaign
file for this code to activate.
All characters
Create a new profile, name it "GARNER", and start
a new game. A message will appear to confirm correct code entry.
All single and multi-player mode characters will be unlocked.
Brutus' special changes
Create a new profile, name it "GARNERVEN", and
start a new game. A message will appear to confirm correct code
entry. Brutus' special meter will last longer, and attacks be
more powerful. Note: You must watch the full ending once, have
all the DNA canisters, and at least one open campaign file for
this code to activate.
Brutus' appearance changes
Create a new profile, name it "GARVEN", and start
a new game. A message will appear to confirm correct code entry.
Brutus' character will look completely different, and he is several
times as powerful as before. Note: You must watch the full ending
once, have all the DNA canisters, and at least one open campaign
file for this code to activate.
Rapid fire weapons
Create a new profile, name it "RAPIDFIRE", and
start a new game. A message will appear to confirm correct code
entry. All weapons, even the shotgun, will fire at a higher rate
of speed. Note: Ammunition is eaten up much faster. Note: You
must watch the full ending once, have all the DNA canisters, and
at least one open campaign file for this code to activate.
Dumber enemies
Create a new profile, name it "SPRAGNT", and start
a new game. A message will appear to confirm correct code entry.
Even under the Brutal difficulty setting, enemies will miss you
more often, act stupid, and your squad will be more intelligent
and shoot and kill enemies with no instructions. Note: You must
watch the full ending once, have all the DNA canisters, and at
least one open campaign file for this code to activate.
Better aim
Create a new profile, name it "DEADAIM", and start
a new game. A message will appear to confirm correct code entry.
You will notice your teammates aim and hit things much more often.
Flint's special meter will decrease slower, and she will drop
enemies quickly. Note: You must watch the full ending once, have
all the DNA canisters, and at least one open campaign file for
this code to activate.
Higher defense
Create a new profile, name it "ERINROBERTS", and
start a new game. A message will appear to confirm correct code
entry. This somewhat increases your squad's defense in damage
taken. They will not get hurt as often, but also seem to dodge
projectiles. Note: You must watch the full ending once, have all
the DNA canisters, and at least one open campaign file for this
code to activate.
Quicker death
Create a new profile, name it "DBLDAY", and start
a new game. A message will appear to confirm correct code entry.
Everyone will be easier to kill; your squad may also die much
faster. Note: You must watch the full ending once, have all the
DNA canisters, and at least one open campaign file for this code
to activate.
Cartoon mode
Create a new profile, name it "HVYMTL", and start
a new game. A message will appear to confirm correct code entry.
During the game, everything looks like a cartoon, with coloring
book-style models, blood resembling paint, lava with a paper feel,
and different level layouts. Note: Note: You must watch the full
ending once, have all the DNA canisters, and at least one open
campaign file for this code to activate.
Tougher game
Create a new profile, name it "BRUTAL", and start
a new game. A message will appear to confirm correct code entry.
This code completely beefs up the enemy AI and seems to change
their behaviors. Even under the Standard difficulty setting they
will ambush you, find a way to hunt you, and come flailing out
in order to kill you. They will take the same amount of hits,
but be much harder to put down, thus making the entire game harder.
They drag themselves away when wounded, similarly to the original
previews of the game or when you fight the Halo aliens
under the Legendary difficulty setting. Note: You must watch the
full ending once, have all the DNA canisters, and at least one
open campaign file for this code to activate.
Bots in multi-player
Start a game of Squad Deathmatch. Plug in controller
two and set the A.I to "Fire At Will". Go around and
pick them up some good weapons and medkits, then disconnect the
controller. Your squad will now be facing three heavy thinking
bots in multiplayer mode.
Bonus multi-player characters
Get the hidden DNA containers to unlock various characters
in multi-player mode.
Confed Marine: Mission 1 or Mission 6
Feral Colonist: Mission 2
Feral Outcast: Mission 3
Feral Shaman: Mission 9
Fire Hound: Mission 13
Gunthar Ghent: Mission 10
Hunter Lord: Mission 18
McTavish: Mission 14
Militia: Mission 5 or Mission 11
Outcast Shaman: Mission 7
Seer Follower: Mission 4
Seer Priest: Mission 8
Shadoon: Mission 12
Shrike Heavy: Mission 16
Shrike Hound: Mission 17
Shrike Soldier: Mission 15