Railbreak

Finish an entire playthrough of Story Mode in one sitting on Hard difficulty

Finish an entire playthrough of Story Mode in one sitting on Off the Rails difficulty

Achieve Max Rank on Act III in Score Attack

Achieve Max Rank on Act V in Score Attack

Clear Act VI

Clear Act IV

Achieve Max Rank on Act I in Score Attack

Land a hit on an enemy with an explosion

Land a hit on an enemy's head with a firearm or explosion

Clear Act II

Achieve Max Rank in Onslaught Mode

Clear Act III

Achieve Max Rank on Act IV in Score Attack

Achieve Max Rank on Act VI in Score Attack

Clear Act V

Achieve Max Rank on Act II in Score Attack

Unlock Dominic

Unlock Falco Jr.

Unlock Jackie

Clear Act I