Unlock Extras:

Anthony Stewart Head Interview:
Complete Mission 1

Amber Benson Interview:
Complete Mission 2

Nicholas Brendan Interview:
Complete Mission 3

Robin Sachs Interview:
Complete Mission 4

Chaos Bleeds Comic Book:
Complete Mission 5

James Marsters Voice Over Session:
Complete Mission 6

Anthony Stewart Head Voice Over Session:
Complete Mission 7

Amber Benson Voice Over Session:
Complete Mission 8

Nicholas Brendon Voice Over Session:
Complete Mission 9

Robin Sachs Voice Over Session:
Complete Mission 10

Joss Whedon Voice Over Session:
Complete Mission 11

Out-Takes:
Complete Mission 12


Unlock Multiplayer Arenas:

Cemetery:
Complete Mission 2 with Slayer rating

Initiative:
Complete Mission 8 with Slayer rating

Quarry:
Complete Mission 11 with Slayer rating


Unlock Multiplayer Characters:

Male Vampire:
Complete Mission 1 with Professional rating

Female Vampire:
Complete Mission 1 with Slayer rating

Zombie Skeleton:
Complete Mission 2 with Professional rating

Zombie Demon:
Complete Mission 3 with Professional rating

Tara:
Complete Mission 3 with Slayer rating

Bat Beast:
Complete Mission 4 with Professional rating

Zombie Devil:
Complete Mission 4 with Slayer rating

Materani:
Complete Mission 5 with Professional rating

Psycho Patient:
Complete Mission 6 with Professional rating

Sid the Dummy:
Complete Mission 6 with Slayer rating

S&M Slave:
Complete Mission 7 with Professional rating

S&M Mistress:
Complete Mission 7 with Slayer rating

Faith:
Complete Mission 8 with Professional rating
Zombie Soldier:
Complete Mission 9 with Professional rating

Kakistos:
Complete Mission 9 with Slayer rating

Abominator:
Complete Mission 10 with Professional rating

Chainz:
Complete Mission 10 with Slayer rating

Zombie Gorilla:
Complete Mission 11 with Professional rating

Joss Whedon:
Complete Mission 12 with Professional rating

Chris:
Complete Mission 12 with Slayer rating