I once played a ROM of an NES Dragon Ball Z game that was made in an RPG-like style. However, when a battle was initiated, it would show the two characters fighting (usually Goku and some enemy fighter.) The animation was absolutely superb, especially for an NES game (and I hate to put it that way, but I've never really seen anything else on the NES quite like it.) You didn't actually control the characters, though...I'm not sure if it was menu-based or if the battles were just automatic, but it looked ages better than Dragon Power.

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