Sonic Generations - Xbox 360

It's Sonic's birthday, and all his friends have thrown him a surprise party. Unfortunately, just as the celebration gets underway, a mysterious creature appears in the sky and pulls Sonic and his friends into strange interdimensional portals! This strange creature is wreaking havoc on the time-space continuum, and Sonic along with a younger version of himself end up at the crossroads of time. The two Sonics must work together to restore his history, save his friends, and fix the flow of time!

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