Eggman liked the design so much, he even used it in the Sonic Boom TV show. It's not all Sonic references ... the Ultimate ...

Meanwhile, “Super Sonic” (Ben Schwartz) battles “Super Shadow” across Earth, space, and the moon’s surface, the two Hedgehogs bury the hatchet and team up (along with “Team Sonic’s ...

In other regions, there are 2 versions of the standard Sonic and Shadow, and 2 for their Super forms. However, it appears the promotion in North America is just offering one standard Sonic figure ...