After the events of Sonic 1, Sonic releases the Chaos Emeralds and is teleported to Hilltop Heights Zone. There, he catches sight of the nearly completed Death Egg and speeds off to stop it's impending launch. Later on after duking it out with Eggman, he heads off into Star Shore Zone. There, Tails is looking awkwardly at a Motobug that seems to be asleep, and he tries to touch it, and it awakes, and just as it is about to attack Tails, Sonic comes out of nowhere, destroys the badnik, and hurries off. Tails, amazed at the sight, sets out to follow the blue bur.