At the main menu, select "Options", choose "Cheat", and enter one of the following codes to activate the corresponding cheat function. Note: Enabling codes will disable the ability to save the game.
|All characters in Multiplayer mode||CAST|
|All weapons in Multiplayer mode||DKSD|
|All weapons in Single Player mode||GTSM|
|One shot kills||MNKY|
Successfully complete one of the following tasks to get a trophy:
- There is no Cake (Platinum): Unlock all other trophies.
- Head Shot (Bronze): Kill an enemy with a single shot to the head.
- One Shot Kills (Bronze): Successfully kill an enemy with one shot.
- Multi-Kill (Bronze): Perform a multi-kill with a melee weapon.
- Multi-kill with a grenade (Bronze): Perform a multi-kill with a grenade.
- First Kill (Bronze): Successfully complete your first kill of an opposing team member in Multiplayer.
- Roadhouse (Bronze): Kill 3 members of the opposing team with a melee attack before you die in Multiplayer.
- It's All Greek To Me (Bronze): Complete the "It's All Greek To Me" level.
- Something's Amish (Bronze): Complete the "Something's Amish" level.
- Handicapable (Bronze): Complete the "Handicapable" level.
- Pussy Whipped (Bronze): Complete the "Pussy Whipped" level.
- No Cheese, Please (Bronze): Complete the "No Cheese, Please" level.
- Long John Peter (Bronze): Complete the "Long John Peter" level.
- Santa's Sweatshop (Bronze): Complete the "Santa's Sweatshop" level.
- Chickens In Space (Bronze): Complete the "Chickens In Space" level.
- Chicken Fight! (Bronze): Complete the "Chicken Fight!" level.
- No Place Like Home (Gold): Complete the "No Place Like Home" level.
- Obsessed (Gold): Complete all secondary objectives.
- We Be Clubbing (Bronze): Defeat 10 enemies with a melee weapon.
- Lockdown (Bronze): Shut out the other team from scoring in Capture the Greased-Up Deaf Guy.
- Penny Pincher (Silver): Collect $50,000 in Story Mode.
- Mr. Unpopular (Bronze): Choose Meg for a Multiplayer match.
- The Cleaner (Silver): Get a 10 kill streak in Deathmatch.
- Teabaggin' (Bronze): Taunt 25 times in any Multiplayer match.
- IEDead (Bronze): Kill 60 enemies with grenades/explosives.
- Help From My Friends (Bronze): Use the collectible special inventory items 25 times in Story Mode.
- Boom Headshot (Bronze): Kill 75 enemies with headshots.
- Bipolar (Bronze): Switch between Brian and Stewie 10 times in Story Mode.
- Shut Up Meg (Bronze): Kill Meg during any Multiplayer Match.
- Scorched Earth (Bronze): Burn the pot fields in the "Something's Amish" level.
- How Do I Jump? (Bronze): Kill yourself with a grenade or satchel charge.
- Kings of Quahog (Bronze): Win a Deathmatch mode (free-for-all or as a team).
- Mort Will Now Lend You Credit (Silver): Buy everything available in Store.
- Bestest Infiltrator (Bronze): Win an Infiltration map.
- Stewie-nator (Silver): Kill 500 enemies using Stewie.
- Justified (Silver): Kill 500 enemies using Brian.
- Grease Can't Save You Now (Bronze): Win a Capture the "Greased-Up Deaf Guy" match.
- Teabag a D-Bag (Bronze): Taunt a dead opponent with Quagmire in Multiplayer.
- Little Dipper (Bronze): Earn 10 stars in Challenge mode.
- Big Dipper (Silver): Earn 21 stars in Challenge mode.
- Bird is the Word (Bronze): Taunt 5 times in a row with Peter.
- Ugly Tastes Terrible (Bronze): Play poorly during the final showdown.
- Cartoon Apocalypse (Silver): Survive 30 waves in Multiverse Madness.
- Bunch of Chumps (Bronze): Survive 15 waves in Multiverse Madness.
- Wrecking Ball (Bronze): Smash your opponent into something 20 times in the "Chicken Fight!" level.
- Pervert (Bronze): Hang around the room with Quagmire in a baby costume for 30 seconds.
- Employee of the Month (Bronze): Kill Vernon.
- Day Labor (Bronze): Destroy all of the piñatas in the "It's All Greek to Me" level.