Sonic-generations-gmae -

: Green Hill (Sonic 1), Chemical Plant (Sonic 2), and Sky Sanctuary (Sonic 3 & Knuckles).

The game features a "greatest hits" selection of stages from three eras: sonic-generations-gmae

: Crisis City (Sonic '06), Rooftop Run (Sonic Unleashed), and Planet Wisp (Sonic Colors). Modern Enhancements: Sonic x Shadow Generations : Green Hill (Sonic 1), Chemical Plant (Sonic

: A mix of 2D and 3D gameplay utilizing the "Boost" mechanic seen in titles like Sonic Unleashed and Sonic Colors . : Green Hill (Sonic 1)