Complete the indicated task to unlock the corresponding character.

Elroy Budvis: Already available for purchase at the store for $10,000.
Lou: Successfully complete the game to purchase Lou for $15,000. Lou comes with his skeleton guitar.
MetalHead: Already available for purchase at the store for $10,000.
Slash: Defeat him in the Boss battle in Career mode to unlock him for purchase at the store for $10,000.
Tom Morello: Defeat him in the Boss battle in Career mode to unlock him for purchase at the store for $10,000.