: Speed Highway (Sonic Adventure), City Escape (Sonic Adventure 2), and Seaside Hill (Sonic Heroes).

: A mix of 2D and 3D gameplay utilizing the "Boost" mechanic seen in titles like Sonic Unleashed and Sonic Colors .

: Pure 2D side-scrolling platforming inspired by the original Sega Genesis era, focusing on physics and momentum.

: The remaster features updated visuals, reworked cinematics, and new collectibles like hidden Chao.

The game features two distinct playstyles across reimagined versions of legendary stages:

: While the original standalone version was delisted from some storefronts like Steam, it remains available as part of legacy bundles.

: Crisis City (Sonic '06), Rooftop Run (Sonic Unleashed), and Planet Wisp (Sonic Colors). Modern Enhancements: Sonic x Shadow Generations

: A brand-new standalone campaign featuring Shadow the Hedgehog with unique "Doom Powers" and his own 3D hub world.