: In the retail Sonic 3 , Flying Battery Zone was moved to the beginning of Sonic & Knuckles . Sonic 3C Delta restores it to its intended position between Carnival Night and IceCap Zone.
: Super Sonic regains the ability to toss rings, a feature discovered via Game Genie codes in prototype builds but omitted from the final release. sonic 3c delta 11
: Hyper Sonic features horizontal stars around him and uses an unused theme, differentiating him further from the Super form. : In the retail Sonic 3 , Flying
Since its reveal at the Sonic Hacking Contest (SHC) 2021 , the project has seen several iterations. Sonic 3C Delta - SHC 2021 Trailer 4 Oct 2021 YouTube·Silver Sonic 1992 : In the retail Sonic 3