Pause the game, select the "Extras" option, and choose the "Enter Code" selection. Then, enter one of the following codes to activate the corresponding cheat function:

Successfully complete the indicated task to unlock the corresponding character:

A.I.M. Agent: Successfully complete Level 10: "That Sinking Feeling".
Abomination: Successfully complete Level 4: "Rock Up At The Lock up".
Absorbing Man: Collect his token in the Industrial District.
Agent Coulson: Successfully complete the "Tabloid Tidy UP" bonus level.
Aldrich Killian: Successfully complete Level 5: "Rebooted, Resuited".
Ant-Man: Collect the Ant-Man token in the Industrial District.
Archangel: Collect the Archangel token south of the X-Mansion (south of giant billboard).
Arnim Zola: Successfully complete Level 6: "Red Head Detention".
Aunt May: Successfully complete Deadpool's three missions.
Beast: Successfully complete Level 8: "Juggernauts And Crosses".
Beetle: Collect the Beetle token at one block east of the Central Park lake.
Blade: Successfully complete Blade's three missions.
Black Cat: Collect the Black Cat token at the cat pet shop, directly under Lady Liberty on the map; requires Spider-Man.
Black Panther: Successfully complete Black Panther's three missions.
Black Widow: Successfully complete Level 3: "Exploratory Laboratory".
Blob: Collect the Blob token after completing the "Put Up Your Dukes" bonus level.
Bullseye: Collect his token in the Slums District.
Captain America: Successfully complete Level 2: "Times Square Off".
Captain America (Comics): Successfully complete "The Brick Apple" bonus level.
Captain Britain: Successfully complete "The Brick Apple" bonus level.
Carnage: Collect his token in the Residential District.
Colossus: Collect the Colossus token at the front right courtyard of the X-Mansion.
Cyclops: Successfully complete Level 8: "Juggernauts And Crosses".
Cyclops (Astonishing): Taxi the character in the Financial District to his destination, and collect his token.
Damage Control: Collect the Damage Control token by putting out fires on the S.H.I.E.L.D. Helicarrier deck with the water gun.
Daredevil: Successfully complete the "Feeling Frisky" bonus level.
Deadpool: Collect all Deadpool Red Bricks.
Doc Ock: Successfully complete Level 2: "Times Square Off".
Doc Ock (Ultimate): Successfully complete the "Tabloid Tidy UP" bonus level.
Doctor Doom: Successfully complete Level 14: "A Doom With A View".
Doctor Strange: Successfully complete the "Stranger Danger" bonus level.
Doombot: Successfully complete Level 9: "Doctor In The House".
Doombot (V-Series): Successfully complete Level 14: "A Doom With A View".
Drax The Destroyer: Successfully complete Story mode, then complete three missions received from Drax.
Electro: Successfully complete the "A Shock Withdrawal" bonus level.
Electro (Ultimate): Taxi the character in front of the Oscorp Building to her destination, and collect her token.
Elektra: Collect her token in the Slums District.
Emma Frost: Successfully complete a mission from Professor X.
Frost Giant: Successfully complete Level 7: "Bifrosty Reception".
Galactus (Playable): Successfully complete Level 15: "The Good, The Bad And The Hungry".
Gambit: Successfully complete three of Gambit's missions".
Gamora: Successfully complete Story mode, then complete the first missions received from Drax.
Ghost Rider: Successfully complete the "Stunt Show Surprise" bonus level.
Green Goblin: Successfully complete Level 9: "Doctor In The House".
Green Goblin (Ultimate): Collect his token in the "Thrill Of The Chess" bonus level.
Groot: Successfully complete Story mode, then complete three missions received from Groot.
Gwen Stacy: Successfully complete "Mission 47" for Drax.
Havok: Collect his token in the Forest District.
Hawkeye: Successfully complete Level 3: "Exploratory Laboratory".
Heimdall: Successfully complete Heimdall's three missions.
H.E.R.B.I.E.: Successfully complete Level 2: "Times Square Off".
Howard the Duck: Successfully complete the "Nuff Said" bonus level.
Hulk: Successfully complete Level 1: "Sand Central Station".
Human Torch: Successfully complete Level 6: "Red Head Detention".
Hydra Agent: Collect his token in the Forest District.
Iceman: Successfully complete Level 8: "Juggernauts And Crosses".
Invisible Woman: Successfully complete Level 9: "Doctor In The House".
Invisible Woman (Future Foundation): Collect her token in the "Stranger Danger" bonus level.
Iron Fist: Successfully complete the race mission with Blade, then win the fight with the ice enemies in the Blade mission.
Iron Man (Heroic Age): Successfully complete Deadpool's "New York Event" bonus mission.
Iron Man (Hulkbuster): Land on the "S" sign landing platform, then destroy all air vents around the "S" sign.
Iron Man MK I: Successfully complete Level 5: "Rebooted, Resuited".
Iron Man MK VI: Successfully complete Level 1: "Sand Central Station".
Iron Man MK VII: Successfully complete the "House Party Protocol" bonus level.
Iron Man MK XLVII: Successfully complete Level 5: "Rebooted, Resuited".
Iron Man MK XVII: Successfully complete the "House Party Protocol" bonus level.
J. Jonah Jameson: Successfully complete the "Tabloid Tidy Up" bonus level.
Jean Grey: Successfully complete Level 8: "Juggernauts And Crosses".
Juggernaut: Successfully complete Level 8: "Juggernauts And Crosses".
Kingpin: Successfully complete the "Feeling Frisky" bonus level.
Kingpin Henchman: Collect his token in the "Feeling Frisky" bonus level.
Kraven The Hunter: Collect the Kraven token by shooting the five targets next to the Godzilla-type icon at Central Park.
Kurse: Defeat him in battle near Roxxon Power Station, and collect his token.
Lady Liberty (Minifigure): Successfully complete Level 11: "Taking Liberties".
Laufey: Successfully complete the "Bro-tunheim" bonus level.
Loki: Successfully complete Level 15: "The Good, The Bad And The Hungry".
Magneto: Successfully complete Level 13: "Magnetic Personality".
Magneto Acolyte: Successfully complete Level 13: "Magnetic Personality".
Malekith: Successfully complete the "Bro-tunheim" bonus level.
Mandarin (Film): Collect his token in the "Stunt Show Surprise" bonus level.
Maria Hill: Successfully complete Maria Hill's three missions on the Helicarrier.
Mary Jane Watson: Collect her token in the Residential District.
Mister Fantastic: Successfully complete Level 2: "Times Square Off".
Mister Fantastic (Future Foundation): Defeat Ghost Rider in a race starting in West Harlem.
M.O.D.O.K.: Successfully complete Level 10: "That Sinking Feeling".
Moon Knight: Collect his token in the "A Shock Withdrawal" bonus level.
Ms. Marvel: Collect her token in the "'Nuff Said" bonus level.
Mysterio: Successfully complete the "Thrill Of The Chess" bonus level.
Mystique: Successfully complete Level 12: "Rapturous Rise".
Nick Fury: Successfully complete Level 9: "Doctor In The House".
Nightmare: Successfully complete the "Stunt Show Surprise" bonus level.
Nova: Successfully complete the foot race mission with Nova to the east of the Godzilla-type icon at Central Park.
Pepper Potts: Successfully complete Black Panther's first mission.
Phoenix: Successfully complete the "Put Up Your Dukes" bonus level.
Polaris: Successfully complete the "Thrill Of The Chess" bonus level.
Power Man: Collect his token in the Yorkville District.
Professor Xavier: Successfully complete Professor Xavier's three missions behind the X-Mansion.
Psylocke: Successfully complete all Captain Britain's missions.
Punisher: Successfully complete his three missions.
Pyro: Successfully complete Level 8: "Juggernauts And Crosses".
Red Hulk: Defeat Red Hulk in battle, and collect his token.
Red Skull: Successfully complete Level 6: "Red Head Detention".
Rescue: Successfully complete Black Panther's second mission.
Rhino: Successfully complete Level 12: "Rapturous Rise".
Rocket Raccoon: Successfully complete the following three missions: Garbage truck northwest of Central Park, just east of the "Feeling Fisky" bonus mission, and three or four blocks south of the east coast.
Ronan The Accuser: Collect the Ronan character token by finding the hidden path behind the statue south of his icon.
Roxxon Agent: Successfully complete Level 1: "Sand Central Station".
S.H.I.E.L.D. Agent: Collect his token on the Helicarrier.
Sabretooth: Successfully complete Level 4: "Rock Up At The Lock Up".
Sandman: Successfully complete Level 1: "Sand Central Station".
Sandman Goon: Collect his token directly east of the Lizard House, near the water.
Sentinal (Minifig): Defeat the Sentinal, and collect its token.
She-Hulk: Collect her token in the Scrapyard.
Shocker: Successfully complete the "A Shock Withdrawl" bonus level.
Silver Samurai: Collect his token in the Industrial District.
Silver Surfer: Successfully complete three Silver Surfer missions.
Spider-Man: Successfully complete Level 1: "Sand Central Station".
Spider-Man (Future Foundation): Defeat Ghost Rider in a race in the Dockyard.
Spider-Woman: Collect the Spider-Woman token west of the park, on the southern-most part of the island.
Squirrel Girl: Collect the Squirrel Girl token on the docks, northwest of the "Put Up Your Dukes" bonus mission.
Stan Lee: Rescue all 50 Stan Lees.
Star-Lord: Successfully complete three missions from Star-Lord.
Storm: Successfully complete Level 8: "Juggernauts And Crosses".
Superior Spider-Man: Skydive off the Empire State Building, fall through the rings of studs, then collect his token near the ground.
Super-Skrull: Collect his token in the Upper East Side.
Symbiote Scientist: Successfully complete Level 3: "Exploratory Laboratory".
Symbiote Scientist (Hazmat): Successfully complete Level 3: "Exploratory Laboratory".
Taskmaster: Collect his token on a platform above the clouds east of Liberty Island.
The Destroyer (Playable): Successfully complete Level 7: "Bifrosty Reception".
The Leader: Collect his token near Fisk Tower.
The Mandarin: Successfully complete Level 5: "Rebooted, Resuited".
Thing: Successfully complete Level 9: "Doctor In The House".
Thing (Future Foundation): Collect his token in the "Reptilian Ruckus" bonus level.
Thor: Successfully complete Level 7: "Bifrosty Reception".
Thor (Classic): Collect his token in the "Bro-tunheim" bonus level.
Toad: Successfully complete his three missions.
Tony Stark: Successfully complete Level 5: "Rebooted, Resuited".
Tony Stark (Underwear): Successfully complete Level 4: "Rock Up At The Lock Up".
Union Jack: Successfully complete "The Brick Apple" bonus level.
Venom: Successfully complete Level 3: "Exploratory Laboratory".
Viper: Collect his token in Central Park.
Vulture: Successfully complete the "'Nuff Said" bonus level.
War Machine: Successfully complete the "House Party Protocol" bonus level.
Wasp: Collect the Wasp token one block south of the Oscorp Building.
Whiplash: Collect his token in Yorkville.
Wizard: Collect his token on the Baxter Building.
Wolverine: Successfully complete Level 4: "Rock Up At The Lock Up".
Wolverine (Cowl): Collect his token in the "Put Up Your Dukes" bonus level.

Successfully complete the indicated task to unlock the corresponding vehicle for purchase at their call-in locations (land for cars, water for boats, or helipads for planes and helicopters):

Captain America's Bike: Taxi the character at the Dockyard to its destination.
Chitauri Chariot: Unfreeze four citizens who are frozen by Loki in Times Square.
Deadpool's Helicopter: Successfully complete a Deadpool mission in West Harlem.
Deadpool's Scooter: Defeat Deadpool in a race on the Brooklyn Bridge.
Doom Jet: Collect its token in the Financial District.
Fantasticar: Collect its token atop a fountain in Central Park.
Flower Car: Successfully complete a Groot quest in Central Park.
Garbage Truck: Successfully complete a Roccet Raccoon quest in the Scrapyard.
Ghost Rider's Motorcycle: Defeat Ghost Rider in three races.
Go-kart: Defeat Maria in a race on the SHIELD carrier.
Golf Cart: Collect its token on Liberty Island.
Hydra Tank: Collect its token at the top of the Empire State Building.
Magneto-mobile: Successfully complete a Professor X mission at the X-Mansion.
Mandarin's Boat: Successfully complete a Groot quest in the Financial District.
Mandarin's Buggy: Collect its token in the Industrial District.
Mandarin's Helicopter: Successfully complete a Gambit mission at the X-Mansion.
News Helicopter: Collect its token above the tunnel in the Upper East Side.
Pizza Bike: Defeat Blade in a race beginning in the Financial District.
Pizza Van: Collect its token in a store in Little Italy.
Police Helicopter: Shoot four targets in the Industrial District.
Police Motorcycle: Collect its token in Yorkville.
Police Truck: Collect its token at Horizon Labs.
Pumpkin Chopper: Collect its token at the top of the Oscorp Building.
Punisher's Car: Successfully complete the Punisher's mission after unlocking his truck.
Punisher's Truck: Successfully complete the Punisher's first mission.
Raft Helicopter: Collect its token on The Raft.
Raft Truck: Collect its token at The Raft's Island.
Raid Truck: Win the Whack-A-Mole game at The Raft Ferryport.
S.H.I.E.L.D. 4x4: Collect its token in the Upper West Side.
S.H.I.E.L.D. APC: Collect its token in a building at The Raft.
S.H.I.E.L.D. Jetfighter: Collect its token on the deck of the SHIELD Helicarrier.
S.H.I.E.L.D. Minicarrier: Successfully complete a Maria quest on the SHIELD Helicarrier.
S.H.I.E.L.D. Staff Car: Collect its token at the top of a building in the Financial District.
Spider-Copter: Destroy three spider webs at the top of Ant-Man's lab.
Spider-Cycle: Collect its token at the top of Sanctum Sanctorum.
Spider-Trike: Collect its token in a greenhouse in the Upper East Side.
Stark Jet: Collect its token in the water in Central Park.
The Britmobile: Successfully complete a Captain Britain quest in the Financial District.
Wolverine's Motorcycle: Successfully complete a Toad quest in Industrial District.
X-Jet: Collect its token in a cave under the X-Mansion.

Successfully complete the indicated task to unlock the corresponding multiplier brick:

x2 Multiplier: Enter "UZFBG4" as a code or purchase it for 1,000,00 studs.

x4 Multiplier: Use a telekinesis character in the "Tabloid Tidy Up" bonus level to rearrange the trophies in the back office. It can then be purchased for 2,000,000 studs.

x6 Multiplier: Use a telekinesis character in the "Feeling Fisky" level to interact with the picture of the Kingpin on the back wall. Then, use a laser or fire character to destroy the gold shape. It can then be purchased for 3,000,000 studs.

x8 Multiplier: Use an electric character to start a transformer in the "Reptillian Ruckus" level, followed by a magnetic character to open up a container containing the red brick. It can then be purchased for 4,000,000 studs.

x10 Multiplier: Use a telekinesis character in the "House Party Protocol" level to break the swinging piñata. It can then be purchased for 5,000,000 studs.