New Sonic Adventure 2 character revealed

It's no secret that by the time Sonic Adventure 2 was released, Sega had pretty much abandoned all hope of a victory in the war against the PS2. However, this was no excuse for clearly sacking the in-house proof reader:

Rouge the Bat. Worse than all of the Chaotix characters combined

What the fuck is an echnida? And all this time I thought Knuckles was an echidna...