Mine has to be the Sweettooth, which parodies a beaver. Not only are beavers one of my favourite creatures, but also the name of their VP counterpart which suits me perfectly! Their colours are also fantastic too!
I'm not familiar with the video game but I've seen the TV cartoon version. A good friend of mine from high school was the voice actor for "Fergy Fudgehog" on the animated show, so I guess he'd be my favorite.
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