The player had to select four characters of different colors (blue, green, red and yellow) in order to battle enemies in an event.

Dremagen, styling herself as the "Master of a Thousand Dimensions", uses her power to take over the universes and timelines across time and space itself.

Amy Rose finds Ax Battler and asks for his help, though he refuses at first due to feeling too weak to take on Dremagen.

Along the way, Amy and Ax recruit several others to their side, such as Blaze Fielding, AiAi the Monkey, Big the Cat, Beat, Sonic the Hedgehog, Joe Musashi, and Cream the Rabbit.

When the world is not restored to normal, the heroes decide to remain allied and prepare for Dremagen's inevitable return.