While not an intended feature, the Dragonborn can become a Vampire-Werewolf hybrid in The Elder Scrolls V: Skyrim. The Werewolf state was part of the base Skyrim game, while Vampire was later added to the Dawnguard expansion — which is included in most Skyrim editions. That pack fully intended for players to only commit with a single monstrous transformation. However, thanks to an oversight and glitch it is possible to have access to both at the same time.
Normally, one would have to pick
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