It sounds like you are looking for a specific MUGEN build titled "Sonic Battle HD Deluxe Edition".
"Sonic Battle HD Deluxe" MEGA link.The game transforms the original 3D-isometric combat into a 2D fighting experience. It features: sonic battle hd deluxe edition mugen hot
Modern Icons: Shadow, Silver, and Blaze with updated move sets. It sounds like you are looking for a
When the community calls a Mugen build “hot,” it means three things: viral online matches, innovative mechanics, and a "no-boring-characters" policy. This game has all three. HD sprites (upscaled or redrawn characters) Extra characters
, including classic heroes, obscure comic book faces, and powerful fan-made transformations like Ultra Ego Shadow and Fleetway Sonic. Staging & Audio : Includes 88 unique stages paired with remixed music from various Sonic titles. Gameplay Modes : Standard Arcade, Team Battle, Survival, and a Watch Mode where you can observe AI-controlled fights. Visual Style