: This version used Christian Whitehead’s Retro Engine , which provided a smooth 60fps experience, widescreen support, and the ability to play as Tails .

Often cited as one of the best platformers in the franchise, Sonic CD is famous for its , allowing players to jump between Past, Present, and Future versions of every stage.

: The standalone digital version was delisted from the PlayStation Store in May 2022.

: To unlock the Sound Test, you must beat the Time Attack special stages in under 4 minutes. Once unlocked, specific code combinations reveal hidden screens.