Complete the game as Nite Owl.

Complete the game as Rorschach.

Complete the game in Co-operative mode.

Perform all 8 Nite Owl combos within 60 seconds.

Perform all 8 Rorschach combos within 60 seconds.

Eliminate an enemy that your partner has knocked down or thrown in your direction.

Take down 10 enemies in a row finishing off each of them before doing damage to anybody else.

Hit 14 enemies with a single electrify armor blast.

Sustain a single rage mode for 60 seconds.

Hit at least 4 different enemies while building up a combo.

String a single uninterrupted combo that's at least 10 hits long.

Complete Chapter III without hitting any ladies before they hit you.