Gems are found in Wario: Master of Disguise. When an enemy is defeated, they leave various gems behind (as well as hearts). The gems help Wario level up and have more energy on one of his seven different disguises he gets in the game.
This is the list of gems in the game and what form they power up:
- Yellow gems power up the Thief Wario disguise.
- Silver gems power up Cosmic Wario.
- Orange gems power up Arty Wario.
- Green gems power up Genius Wario.
- Black Gems power up Sparky Wario.
- Blue Gems (shaped like a drop of water) power up Captain Wario.
- Red gems (shaped like fire) power up Dragon Wario.
- Pink Gems power up Wicked Wario.