Play Blue Sphere , Knuckles in Sonic 2 , Sonic 3 & Knuckles , and Flicky 30 times each.
Up, Down, Left, Right (chime), then hold Square/X and Start. Sonic Mega Collection Plus
In Angel Island 1, press Left(3), Right(3), Up(3). Additional Resources Play Blue Sphere , Knuckles in Sonic 2