Episode I , the Chaos Emeralds serve as bonus items the player can collect over the course of the game. In this game, the player can upgrade the Chaos Emeralds to Super Emeralds. This is because of the energy of the Chaos Emeralds is overpowering it.

Robotnik wants to use the power of the Chaos Emeralds to gain control over the world. We've gotta give it a shot!

Jump up on the yellow bounce pad and wait for the ledge to crumble. Sonic Mania Collectibles.