Unlock Hunchback Character
Get a silver or better in the 'Stain Removal' challenge in Challenge Mode.
Unlock Sewer Zombie Character
Get a silver or better in the 'Fight Off The Living Dead' challenge in Challenge Mode.
Unlock Sergio Character
Get a silver or better in the 'Sergio's Last Stand' challenge in Challenge Mode.
Unlock Feeder Zombie Character
Get a silver or better in the 'Day Of The Damned' challenge in Challenge Mode.
Unlock Ample Sally Character
Get a silver or better in the 'Take 'Em Down' challenge in Challenge Mode.
Unlock Marco The Snitch Character
Get a silver or better in the 'Fallout' challenge in Challenge Mode.
Unlock Sgt Rock Character
Get a silver or better in the 'Pick yer Piece' challenge in Challenge Mode.
Unlock Badass Cyborg Character
Get a silver or better in the 'Badass Buspass Impasse' challenge in Challenge Mode.
Unlock R-One-Oh-Seven Character
Get a silver or better in the 'Where Do The Batteries Go?' challenge in Challenge Mode.
Unlock Cropolite Character
Get a silver or better in the 'Hit Me Baby One Morgue Time' challenge in Challenge Mode.
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