Board Thread:Questions and Answers/@comment-25348898-20140914173728/@comment-679780-20160806232639

LuckysixFroggy wrote: One of my fave things about Cd is that Sonic TIME TRAVELS under his own power Yeah and no...

It's because of the Time Warp Plates what allow him to time travel. These Time Plates are located on Little Planet where the Time Stones are located. It is these gems that allow Little Planets past and future to fold in on itself. The Time Plates simply allow Sonic to pass through the fold.