Act 1 is largely based on Lava Reef Zone. Act 1 also takes level design cues from Hydrocity Zone.
* This zone is mostly based on the following act, Ocean Palace. * The setting for the fight against Perfect Chaos ( Sonic Adventure's Final Boss). * The setting for the Rival Boss Fight against Metal Sonic.
Sonic CD: Stardust Speedway (Bad Future).Sonic 2: Chemical Plant Zone, Death Egg Zone, * The setting for the fight against the Death Egg Robot (Sonic 2's final boss).
