Press Up(3), Left, Right, Left at the team menu. 100K
Press Up(2), Down(2), Left(3), Start at a S.H.E.I.L.D. save zone menu or the main menu. All characters
Press Up, Left(2), Up, Right(2), Up at the Review menu. All Cinematics
Press Left, Right(2), Left, Up(2), Right at the Review menu. All Comics
Press Down(3), Right(2), Left, Down at the Review menu. All Concept Art
Press Up, Down, Up, Down, Left, Right, Left, Right, Up, Down, Start at a S.H.E.I.L.D. save zone menu or the main menu. All costumes
Press Left, Right, Left, Right, Up, Down, Up, Down, Left, Right, Start at a S.H.E.I.L.D. save zone menu or the main menu. All powers
Press Up, Down, Right, Left, Up(2), Down at the Review menu. All Wallpapers
left, left, right, right, up, down, up, down Daredevil
Press Left, Right(2), Left, Up, Down(2), Up during game play. Filler
Press Up, Down, Up, Down, Up, Left, Down, Right during game play. God Mode
Press Up, Left, Up, Left, Down, Right, Down, Right at the team menu. Level 99
down, left, left, up, right, up, down, left Silver Surfer
Press Up, Left, Up, Right, Down, Right during game play. Super Speed
Press Up, Right, Left, Down, Up, Right, Left, Down at the Comic Book mission menu. The Courses
Press Left, Right, Down(2), Right, Left during game play. Touch of Death

Unlockables

Achievements - Complete each of the following achievements below to get the allotted gamerscore.

Condition:

Agent of S.H.I.E.L.D. (30) Unlock Nick Fury.

Blue Screen of Death ( 15) Defeat M.O.D.O.K.

Deathbird's Defeat (15) Defeat Deathbird.
Defeated Grey Gargoyle (15) Defeat Grey Gargoyle.
Doomed Ending (45) Defeat Dr. Doom.
Dragon Slayer (15) Defeat Fin Fang Foom.

Fledgling Superhero (5) Defeated 10 enemies.

Game Over (15) Defeat Arcade.
Giant Relief (15) Defeat Ymir.

Legendary Superhero (15) Defeated 100 enemies.

Mandarin's Downfall (45) Defeat Mandarin.
Mephisto's Defeat (45) Defeat Mephisto.

Pugilist (5) Performed 5 Finishing Moves.

Scarlet Swashbuckler (30) Unlock Daredevil.
Surfs Up (30) Unlock Silver Surfer.
Swimming with the Fish (15) Defeat Kraken

The Executioner's Blade (15) Defeat Executioner and Enchantress.
The Power Cosmic (45) Defeat Galactus.
The Trickster (45) Defeat Loki.
Titanic Victory (15) Defeat Titannus.

Underwater Battle (15) Defeat Tigershark and Attuma.

Wakandan Royalty (30) Unlock Black Panther.
Warrior's Path (15) Defeat Gladiator.

Unlockable Heros and Modes

There are a total of 7 playable characters which can be unlocked after performing certain ingame criteria.

Condition:

Black Panther Collect Black Panther Action Figures throughout various acts
Daredevil Collect Daredevil Action Figures throughout various acts
Dr. Strange Rescue him from Mandrin in Act 1
Ghostrider Rescue him from Mephisto in Act 2
Hard Mode Complete the game on easy or normal mode
Nick Fury Complete the game on easy or normal mode
Silver Surfer Defeat Galactus
Unlockable Team Bonuses

Certain character combinations unlock special boosts.

Condition:

Agents of SHIELD Captain America, Nick Fury, Spider-Woman, Wolverine
Agile Warriors : 10% Reduced Energy Cost Spider-Man, Spider-Woman, Elektra, Deadpool
Air Force Human Torch, Ms. Marvel, Storm, Thor
Alternate Identities Ironman - War Machine, Ghost Rider – Western, Spider-Woman - Secret Wars, Ms. Marvel – Ventura, Thor - Beta Ray Bill
Assassins Blade, Deadpool, Elektra, Wolverine
Avengers : +5% damage Captain America, Thor, Iron Man, Spider-Woman, Ms. Marvel

Bad to the Bone Blade, Ghost Rider, Luke Cage, Wolverine
Bruisers : +15 Striking Thing, Captain America, Luke Cage, Ms. Marvel

Classic Avengers Black Panther, Captain America, Iron Man, Thor

Dark Past Blade, Elektra, Ghost Rider, Spider-Woman
Defenders Dr. Strange, Iceman, Luke Cage, Silver Surfer
Double Date Black Panther, Invisible Woman, Mr. Fantastic, Storm

Fantastic Four : 20 Health per KO Mr. Fantastic, Invisible Women, Human Torch, Thing
Femme Fatale : +5% Damage Ms. Marvel, Storm, Invisible Woman, Elektra, Spider-Woman
Flashback Iceman in Snowy Form, Captain America in WW2, Daredevil in Original, Ghost Rider in Original, Iron Man in Classic, Orig. Ms. Marvel, Classic Wolverine

Martial Artists Black Panther, Captain America, Daredevil, Moon Knight, Nick Fury
Marvel Knights Black Panther, Daredevil, Dr. Strange, Luke Cage, Spider-Man, Moon Knight
Marvel Royalty Black Panther, Dr. Strange, Thor, Storm

Natural Forces : 5% Dmg inflicted as Health Gain Thor, Strom, Human Torch, Ice Man
Natural Leaders Captain America, Dr. Strange, Mr. Fantastic, Nick Fury, Storm
New Avengers : +5% All Resistances Captain America, Luke Cage, Wolverine, Spider-Man, Spider-Woman
New Fantastic Four Ghost Rider, Luke Cage, Spider-Man, Wolverine

Power Platoon : 20 Energy per KO Silver Surfer, Iron Man, Ms. Marvel, Thor

Raven Ultimates: +6 body,strike, and focus Deadpool, Colossus, Moon Knight, Thing

Supernaturals Blade, Dr. Strange, Ghost Rider, Thor

Think Tanks: +15% Max Health Dr. Strange, Mr. Fantastic, Spider-Man, Iron Man

Weapons Specialists Blade, Captain America, Deadpool, Elektra, Nick Fury

X-Men Colossus, Iceman, Storm, Wolverine