The manga follows the beginning of the Sonic Colors game: Eggman has built a giant amusement park for everyone to enjoy. Sonic and Tails go to the amusement park to figure out what Eggman is up to.
Manga series focused on Shadow The Hedgehog in order to promote *Sonic X Shadow Generations*. Shadow and Maria live on the Space Colony ARK, but one day they are suddenly attacked by the Earth Defense Forces who are “disposing of dangerous biological experiments”. Shadow and Maria try to protect each other, but Maria is hit by a merciless bullet…? (Source: Shogakukan)

