By Spencer . July 27, 2007 . 11:52am
The ultimate secret in Sonic Adventure 2 is a major treat for fans. You get to play the first stage of Green Hill Zone from Sonic the Hedgehog in full 3D. Sure, Sonic Adventure 2 is old, over six years old. But you need to acquire all of the 180 emblems to see this and this is something every Sonic fan should see.