I'm going on a limb and saying she's either the bat girl or bunny girl from that old Bloody Roar game. I can't figure out if I think it's the bat chick for the ears, or the bunny chick for the furry tail.
Though I guess the bunny would make more sense.....but the bat was my favourite.... um. BUT YEAH. ANIMAL GIRL FROM BLOODY ROAR? Did I get it?