It's worth remembering that Batman could probably be a low midcarder just off the Arkham games - remember, Asylum got 40% on Fallout 3, and the second one has, if anything, been received better. Mickey Mouse, Donald Duck and Goofy could probably be not-fodder based just off the Kingdom Hearts series. Can't think of any other examples of non-VG originating characters having independent VG strength though.
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Who knew the Rivalry Rumble would be so predictable? SuperNiceDog, that's who.