Complete the game in Nite Owl mode.
Complete Chapter III without hitting the ladies before they hit you.
Complete the game in Rorschach mode.
Hit at least 4 different enemies while building up a combo.
Complete the game in Co-op mode.
String a single uninterrupted combo that's at least 10 hits long.
Eliminate 10 enemies that your partner has knocked down or thrown in your direction
Sustain a single rage mode for 60 seconds.
Hit 14 enemies with a single electrify armor blast.
Take down 10 enemies in a row finishing off each of them before doing damage to anybody else.
Perform all 8 Nite Owl combos within 60 seconds.
Perform all 8 Rorschach combos within 60 seconds.
