Red Dead Redemption – XBox 360

Red Dead Redemption - Platform: XBox 360

Cheat mode:
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Go to the options menu, and select the "Cheats" option. Then, press Y,
and enter one of the following cheat code phrases to activate the
corresponding cheat option. Note: Enabling a code will permanently
prevent the game from being saved and achievements from being earned.

Lewis and Clark
Enter "YOU GOT YOURSELF A FINE PAIR OF EYES" as a code phrase to
unlock all areas.

Invincibility
Enter "HE GIVES STRENGTH TO THE WEAK" as a code phrase.

Infinite Dead Eye
Enter "I DON'T UNDERSTAND IMNFINITY" as a code phrase.

Infinite Ammo
Enter "ABUNDANCE IS EVERYWHERE" as a code phrase.

Gun Set 1
Enter "IT'S MY CONSTITUTIONAL RIGHT" as a code phrase to unlock
some weapons.

Gun Set 2
Enter "I'M AN AMERICAN. I NEED GUNS" as a code phrase to get the
buffalo rifle, sawed-off shotgun, semi-auto pistol, Schofield
revolver, Winchester repeater, and fire bottle x3.

Decrease Bounty
Enter "THEY SELL SOULS CHEAP HERE" as a code phrase.

Diplomatic Immunity
Enter "I WISH I WORKED FOR UNCLE SAM" as a code phrase. You will
now have no bounty/wanted level.

Good Guy
Enter "IT AINT PRIDE. IT'S HONOR" as a code phrase to have a
good reputation.

Famous
Enter "I AM ONE OF THEM FAMOUS FELLAS" as a code phrase to
become famous.

Money
Enter "THE ROOT OF ALL EVIL, WE THANK YOU!" as a code phrase to
get $500.

Coach
Enter "NOW WHO PUT THAT THERE?" as a code phrase to spawn a coach.

Horse
Enter "BEASTS AND MAN TOGETHER" as a code phrase to spawn a horse.

Infinite Horse Stamina
Enter "MAKE HAY WHILE THE SUN SHINES" as a code phrase.

Gang Chic
Enter "YOU THINK YOU TOUGH, MISTER?" as a code phrase to unlock
the Treasure Hunter Outfit.

Man In Uniform
Enter "I LOVE A MAN IN UNIFORM" as a code phrase to unlock the
Bureau Uniform, U.S. Army Uniform, and U.S. Marshal Uniform.

Sharp Dressed Man
Enter "DON'T YOU LOOK FINE AND DANDY" as a code phrase to unlock
the Gentlemen's Suit.

Jack Attack
Enter "OH MY SON, MY BLESSED SON" as a code phrase to change
John into Jack, John's son.

Who?
Enter "HUMILITY BEFORE THE LORD" as a code phrase to become a
nobody.

Hic
Enter "I'M DRUNK AS A SKUNK AND TWICE AS SMELLY" as a code
phrase to become drunk.

Old School
Enter "THE OLD WAYS IS THE BEST WAYS" as a code phrase to enable
the Sepia filter.


Bonus weapons:
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Successfully complete the indicated task to unlock the corresponding weapon:

-=Lasso=-
Lasso: Obtained during the "Wild Horses, Tamped Passions" mission. 

-=Pistols=-

Double-Action Revolver: Clear out the Tesoro Azul Hideout.
High Power Pistol: Obtained during the "Bear One Another?s Burden"
mission.
Lemat Revolver: For sale at the Escalera Gunsmith for $1,250 after
the Revolution.
Mauser Pistol: For sale at the Blackwater Gunsmith for $800.
Schofield Revolver: Obtained during the "The Gunslinger?s Tragedy"
mission.
Semi-automatic Pistol: Clear out the Fort Mercer Hideout, and it
will be for sale at the Escalera Gunsmith for $300.
Volcanic Pistol: Clear out the Twin Rocks Hideout, and it will
then be for sale at Armadillo Gunsmith for $100. 

-=Projectiles=-
Dynamite: Obtained during the "Father Abraham" mission. It will
then be for sale at various stores.
Fire Bottle: Obtained during the "The Demon Drink" mission. It
will then be for sale at various stores.
Throwing Knife: Obtained during the "The Great Mexican Train
Robbery". It will then be for sale at various stores. 


-=Rifles=-
Bolt Action Rifle: Obtained during the "The Gates of El Presidio".
It will then be for sale at Escalera Gunsmith for $750.
Buffalo Rifle: Reach Master Hunter Rank 5, and it will be for sale
at any Gunsmith shop for $475.
Evans Repeater: For sale at Blackwater Gunsmith.
Henry Repeater: Clear the Nosalida Hideout.
Repeater Carbine: Obtained during the "New Friends, Old Problems"
mission.
Springfield  Rifle: Obtained during the "We Shall Be Together
in Paradise" mission, or clear the Gaptooth Breach Hideout. It
will then be for sale at Thieves' Landing Gunsmith for $300.
Winchester Repeater: Clear out the Tumbleweed Hideout, or
successfully complete "Spare the Rod, Spoil the Bandit" mission.
It will then be for sale at Armadillo Gunsmith for $350. 

-=Shotguns=-
Double-barreled Shotgun: Obtained during the "Spare the Rod, Spoil
the Bandit" mission. It will then be for sale at Armadillo
Gunsmith for $150.
Pump-action Shotgun: Obtained during the "And the Truth Will Set
You Free" mission.
Sawed-off Shotgun: Clear Pike?s Basin Hideout. It will then be for
sale at Thieves' Landing Gunsmith for $250.
Semi-auto Shotgun: For sale at Escalera Gunsmith for $1,000. 

-=Sniper Rifles=-
Carcano Rifle: For sale at Blackwater Gunsmith for $1,100.
Rolling Block Rifle: Obtained during the "Empty Promises" mission.