We're not exactly clear on Grand Theft Auto IV's box art. There could be five fingers, there could be six! It's somewhat hard to say. But Grand Theft Auto: San Andreas's box art is slightly less ambiguous. An Uzi-wielding gang member clearly has either six fingers or a truly awesome thumb. Look at the image and judge for yourself!
Full box art after the jump.
GTA San Andreas Has Mutants [Kotaku Australia]