Sonic The Hedgehog Werehog PlushSonic the Werehog is a transformation that appears in Sonic Unleashed. A bestial, werewolf like form of Sonic the Hedgehog, this transformation was created when Sonic accidentally absorbed a large dose of Dark Gaia's energy onboard the Chaos Energy Cannon, although the transformation itself would only be triggered by nighttime and remain active until daytime. Sonic eventually lost this form permanently when Dark Gaia reclaimed the energy that caused