Unlockable Characters
You can play the first 4 unlockable characters in 'VS. Mode' but you have to unlock them in 'Story Mode'.
Unlock Eris:
Using either Billy, Mandy, Grim or Irwin beat 'Story Mode' once.
Unlock Fred Fredburger:
Using either Billy, Mandy, Grim or Irwin beat 'Story Mode' once.
Unlock Mogar:
Using either Billy, Mandy, Grim or Irwin beat 'Story Mode' once.
Unlock Nergal:
Using either Billy, Mandy, Grim or Irwin Beat 'Story Mode' once.
Unlock Hoss Delgado:
In Tier 1 in 'Mission Mode' beat Mission 9.
Unlockable Horde Characters
Complete the following tasks to unlock the corresponding effect.
Unlock Vikings:
Using ALL the characters beat 'Story Mode'.
Unlock Chicken:
Using ALL the characters on any difficulty with 10 hours of gameplay beat 'Story Mode'.
Unlock Nerglings:
Using ALL characters on any difficulty beat 'Story Mode'.
We have more cheats and tips for this game here, The Grim Adventures of Billy & Mandy cheats
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