Came across a shaky cam video of Sonic the Hedgehog 4 gameplay. All I can say is I want very much NOW! The comments over at Joystiq definitely had me going with a feeling of nostalgia. According to the all knowing wiki, Sega has had this in production for the last 16 years, or at least that when we got the last official (read: not shit) version. :P

Leaked Footage video after the break