In Wario World, Wario must collect the four pieces of the Huge Treasure Chest Key[1] to unlock the huge Treasure Chest that the Black Jewel has locked itself in.
Wario receives a piece of the Huge Treasure Chest Key after defeating each of the major world bosses, DinoMighty, Dual Dragon, Red-Brief J, and Captain Skull.
Gallery
References
- ^ Wario World pause screen, Treasure Square