Nintendo unveiled a new wave of amiibo figurines for Super Smash Bros., including Sonic and ten other characters. Like the rest of the Smash amiibos, Sonic here is based on his official character portrait from the game:
If ya didn't know, amiibos are used in Smash Bros as personalized computer characters. You can customize their movesets and attributes, pitting them against other players or amiibos, levelling them up in the process. Sorta like a virtual pet? But without having to actually take care of them and stuff.