Unlock the following costumes by performing the corresponding tasks:
COSTUME - HOW TO UNLOCK Dance - Complete the single player campaign under the Normal difficulty. Gimp - Kill 500 creatures. Horror - Kill 100 enemies with a chainsaw. Mow 'em Down - Get 1,000 total kills. Red Pajamas - Perform a 150-hit combo Spartan - Complete the backstory. White Pajamas - Perform a 100-hit combo. Wildman - Complete the single player campaign under the Hard difficulty. Yellow Jump Suit - Kill 100 enemies.
Unlock the following concept art by performing the corresponding tasks:
CONCEPT ART - HOW TO UNLOCK Concept Art #1 - Get 100 shank kills. Concept Art #2 - Get 100 kills with the chains. Concept Art #3 - Get 100 kills with dual pistols. Concept Art #4 - Get 100 kills with the katana. Concept Art #5 - Get 100 kills with grenades. Concept Art #6 - Get 100 kills with the Uzi.
ACHIEVEMENT - HOW TO UNLOCK And it continues - Complete Single Player Campaign on Normal Mode Backstory - Complete co-op campaign mode Father forgive me... - Defeat the priest Grindhouse - 100 Chainsaw kills I'm just that good - Complete Single Player Campaign on Hard Mode Just getting started - Take out 20 enemies Making a name for yourself - Take out 100 enemies Mow 'em Down - Take out 1000 enemies Revenge is Sweet - Defeat cesar Scars from the past - Defeat cassandra The Meating - Defeat the butcher The Wrong Guy - Defeat el raton