Red Sphere, Blue Sphere is a remix by chthonic of the Special Stage song in the video game Sonic the Hedgehog 3. It was released by OverClocked ReMix on Disc 3 of the Sonic 3 & Knuckles: Project Chaos album. The stepfile was released in FFR as the Division 4 song in Round 1 of the 11th Official FFR Tournament. This article is a . You can help My English Wiki by expanding it.