Sonic The Hedgehog 3 Genesis Longlay
2Dr. Robotnik's space station, the Death Egg, crash-lands on a mystical floating landmass called Angel Island after Sonic and Tails defeat him at the end of Sonic the Hedgehog 2. As Robotnik begins to repair the damaged station, he meets Knuckles the Echidna, the last surviving member of an ancient echidna civilization that once inhabited the island, as well as the guardian of the Master Emerald, which grants the island its levitation powers. Realizing Sonic and Tails will try to track him down, Robotnik dupes Knuckles into believing Sonic is trying to steal the Master Emerald, turning the two against each other while Robotnik tries to repair his space station.
Meanwhile, Sonic and Tails approach Angel Island in their biplane, the "Tornado". Sonic jumps off the plane and, using the Chaos Emeralds, turns into Super Sonic, and zooms towards the island. When they arrive, Knuckles ambushes Sonic from underground, steals the emeralds, and disappears inland. As Sonic and Tails travel through the island, they frequently encounter Knuckles and Robotnik, who hinder their progress with various traps. Sonic and Tails eventually arrive at the Launch Base, where the destroyed Death Egg is being repaired. They fight with Knuckles, but the Death Egg launches back into the sky, leaving him behind. They fight Robotnik one last time on a platform attached to the underside of the Death Egg. They defeat him, and the resulting explosion drops Sonic and Tails away from the Death Egg, which crash-lands farther off on Angel Island again. The story continues in Sonic & Knuckles.