The Grim Adventures of Billy & Mandy Cheats

NOTE: As their name suggests hints are not exactly The Grim Adventures of Billy & Mandy cheats, and are usually just simple (but very useful) tips on how you can unlock secret level, features, find hidden areas and such. Hopefully these will make playing The Grim Adventures of Billy & Mandy even more entertaining.

Game Unlockables
Conecpt Art - Beat the Final Mission. (Tier 6 Mission)

Mission Mode Unlockables
Tier 2 Missions - Collect 8 Mojo balls to unlock.
Tier 3 Missions - Collect 17 Mojo balls to unlock.
Tier 4 Missions - Collect 25 Mojo balls to unlock.
Tier 5 Missions - Collect 35 Mojo balls to unlock.
Tier 6 Missions - Collect 53 Mojo balls to unlock.

Unlock Characters in Story Mode
Grim - Collect 15 mojo balls and beat Mandy's Story.
Mandy - Collect 5 mojo balls and beat Billy's Story.