The blue blur filled with attitude, Sonic's always itching to embark on a new venture! With the prolonged absence of Dr. Eggman after their last battle, he starts to gain a false sense of security during his vacation, little does he know of what was to come...

Sonic's closest ally and most trusted friend, this curious fox is always willing to follow alongside Sonic in his adventures! After scanning the badniks that disturbed their vacation, Tails (alongside Sonic) make haste for their source location, Dr. Eggman!

The steadfast protector of Angel Island and the Master Emerald. Knuckles quickly caught on to Dr. Eggman's resurfacing with the badniks that attacked Angel Island. None of them coming to target the Master Emerald raised Knuckles' suspicion well enough. Understanding what this meant, Knuckles meets up with Sonic and co. to take Dr. Eggman down for good.

This cunning jerboa always has a plan to make himself a bountiful profit (most of them to his detriment...). Fang didn't take too kindly to being abandoned in the Atomic Destroyer by Dr. Eggman, so he's teamed up with Sonic and co. to take him down... for purely selfish reasons and rewards, of course!

This excitable young mole is adventurous and always up for a challenge! After noticing the abnormalities of Illusion Island caused by Dr. Eggman, Tunnel makes the decision himself to follow Sonic and co.'s trail after deciphering they're to be trusted to get to the bottom of what's going on!