Shadic the Hedgehog

Shadic the Hedgehog  is the fusion of Sonic and Shadow from the flash movie Nazo Unleashed and its sequel The Return of Nazo. After Sonic and Shadow are beaten by Perfect Nazo, Sonic and Shadow turn into their Hyper forms to use Chaos Unification into fusing into Hyper Shadic. Shadic absorbs Nazo's energy to become Ultimate Shadic and destroy Nazo.