Story
	It's the day before Carnival Island's grand opening, and it's knuckles' job to make sure nothing goes wrong before the grand event. Dr. Robotnik however has other ideas, he has his eyes on the power emerald that provide the energy for Carnival Island. Later that day when knuckles has finished patroling the far side of the island he returns to find his friends, espio, vector, mighty and charmy trapped in a combi-confiner. Knuckles frees them using ring power and he and the chaotix crew set off to rid Robotnik from the island and prevent him getting his greasy mits on the power emerald.