An unknown enemy causes the appearance of multiple "time holes", forcing Sonic and his friends back in time. As a result, Sonic must band together with his past self to defeat this enemy and fix the timestream.
Did You Know?
20th Anniversary project for Sonic the Hedgehog. See more
Silver and Shadow weren't at Sonic's party but ended up in White Space anyway somehow. See more
Sonic the Hedgehog
[Classic Sonic and Tails are returning to the past
Hey Sonic! Enjoy your future. It's gonna be great!
[Classic Sonic gives a thumbs up as he and Classic Tails jump into the portal and it disappears, as Modern Tails and the rest still wave, while Sonic just looks on
Follows Sonic Adventure