Acquired eight or more Support Ninjutsu Books.

Finished an opponent with a throw.

Defeat 10 Enemies in a row with Hand-to-Hand Combat

Collect all Avengers characters in the game (Single Player)

Finish the Game on Easy Without Changing the Difficulty

Completed the Leaf Destruction Arc.

Throw diamonds at another player.

Kill 30 Enemies with the MP40

Kill 20 Enemies by Shooting from the Hip (without aiming)

Collect Howard the Duck (Single Player)

Collect all Iron Man armors (Single Player)

Create a custom character