They added Soap Shoe Sonic into SSS!

He even has his SA2 Sound effects.

Soap Shoes Sonic [Super Smash Bros. (Wii U)] [Mods]

Unlock Grind Shoe Sonic FAST & 2 NEW Features! (Sonic Speed Simulator)

SONIC SPLIT - Sonic Audio Drama (@S0NICSPLIT) / X

SA2 Custom Soap Shoes Figure : r/JakksPacificSonic

PRODUCTS, Sonic Frontiers

Sonic with Soap-Shoes by JaysonJeanChannel on DeviantArt

PRODUCTS, Sonic Frontiers

dem soap shoes Sticker for Sale by liquidsonic

Sonic soap shoes return by megax88 on DeviantArt

How could you make Adventure Sonic change styles when he goes to SA1 to SA2? (In Jeck Jims models)

Triple S.S.S. - Sonic the Hedgehog Photo (37808532) - Fanpop

How to Get Soap Shoes in Sonic Frontiers

Jeck Jims' 2.2 3D Models - Updates

Franchise Festival #86: Sonic the Hedgehog (1998-2007) – The Avocado

Soap Shoes (Sonic Frontiers) [Super Smash Bros. Ultimate] [Mods]