Sonic Robo Blast 2 is 3D Sonic fan game that takes place after the mad doctor took an interest in harnessing energy from a mysterious asteroid, Sonic and friends journey off onto another que... Read allSonic Robo Blast 2 is 3D Sonic fan game that takes place after the mad doctor took an interest in harnessing energy from a mysterious asteroid, Sonic and friends journey off onto another quest to save the world from Dr. Eggman.Sonic Robo Blast 2 is 3D Sonic fan game that takes place after the mad doctor took an interest in harnessing energy from a mysterious asteroid, Sonic and friends journey off onto another quest to save the world from Dr. Eggman.