| Electric Explosion (8) | Hit 14 enemies with a single electrify armor blast. |
| Feral Fighter (15) | Perform all 8 Rorschach combos within 60 seconds. |
| Focus Fire (11) | Take down 10 enemies in a row finishing off each of them before doing damage to anybody else. |
| Friends Forever? (36) | Complete the game in Co-operative mode. |
| Gentleman (8) | Complete Chapter III without hitting any ladies before they hit you. |
| Martial Artist (15) | Perform all 8 Nite Owl combos within 60 seconds. |
| Morally Superior (36) | Complete the game as Nite Owl. |
| Ping Pong (8) | Hit at least 4 different enemies while building up a combo. |
| Rrarararghgh!!! (8) | Sustain a single rage mode for 60 seconds. |
| Street Justice (36) | Complete the game as Rorschach. |
| Unending Combo (8) | String a single uninterrupted combo that's at least 10 hits long. |
| You Tag 'em - I Bag 'em (11) | Eliminate an enemy that your partner has knocked down or thrown in your direction. |
