: You can choose between the original "Sonic CD" style spin dash or the more familiar "Sonic 2" style.
: For the first time, you can unlock Sonic's sidekick, Tails, after completing the game once. SonicCD PSN
: Competitive players can use the built-in Time Attack mode to track their fastest runs and compare them on global leaderboards. Taking Sonic CD Out For Another Spin - Game Informer : You can choose between the original "Sonic
The PlayStation Network (PSN) version of —a 2011 remaster by Christian Whitehead—includes several features that make it the definitive way to play. you can unlock Sonic's sidekick
