Enter "SAVAGELAND" as a code to unlock all Fantastic 4 comics.
All Tomorrow People comics
Enter "NZONE" as a code to unlock all Tomorrow People comics.
Daily bugle rooftop arena
In versus mode, fight as Spider-Man vs. Venom (CPU) in the NYC bridge arena. Win to unlock the Daily Bugle Rooftop arena. You may need to complete the game first.
Electra swimsuit card
Enter "THEHAND" as a code to unlock the Electra swimsuit card.
Handsprings
With Spider-Man, Daredevil, Elektra, or anyone else that does handsprings for a dodging move, hold Y and press Left Analog-stick Away or Left Analog-stick Forward. Keep tapping in that direction and your character will keep doing handsprings.
Play as Brigade
Successfully complete the Iron Man 3 mission in Story mode to unlock Brigade.
Play as Daredevil
Successfully complete the Daredevil 3 mission in Story mode to unlock Daredevil.
Play as Fault Zone
Successfully complete the Storm 3 mission in Story mode to unlock Fault Zone.
Play as Hazmat
Successfully complete the Magneto 3 mission in Story mode to unlock Hazmat.
Play as Iron Man
Successfully complete the Iron Man 3 mission in Story mode to unlock Iron Man.
Play as Magneto
Successfully complete the Magneto 3 mission in Story mode to unlock Magneto.
Play as Paragon
Successfully complete the Paragon 3 mission in Story mode to unlock Paragon.
Play as Solara
Successfully complete the Venom 3 mission in Story mode to unlock Solara.
Play as Storm
Successfully complete the Storm 3 mission in Story mode to unlock Storm.
Play as Van Roekel
Successfully complete the Paragon 4 mission in Story mode to unlock Van Roekel.
Play as Venom
Successfully complete the Venom 3 mission in Story mode to unlock Venom.
Solara swimsuit card
Enter "REIKO" as a code to unlock Solara swimsuit card.
Storm swimsuit card
Enter "MONROE" as a code to unlock the Storm swimsuit card.
Unlock all characters and venues easily
Every ten versus battles unlocks either a venue or a character. The easiest way to do this is on the bridge level, with a second controller. Throw your opponent off the edge of the bridge for an easy victory.