Sonic Unleashed | Sonic News Network | FANDOM …

Sonic Unleashed, known in Japan as Sonic World Adventure (ソニックワールドアドベンチャー Sonikku Wārudo Adobenchā), is a game in the Sonic the Hedgehog series developed by Sonic Team Japan and published by Sega for the PlayStation 2, PlayStation 3, Wii and Xbox 360.