He first appears after the third battle with Griffon, ruthlessly executing his fallen general after he pleads to Mundus to be healed and strengthened to defeat Dante. For much of the game, Mundus remains dormant within the statue of his younger form in the main hall of the castle, with Dante writing the statue off as nothing more than a depiction of the inhabitants god. At the same time, he uses his creation Trish to manipulate Sparda's other son, Dante, into coming to the island so that he can be killed.

Mundus attempts to escape into the human world by opening a gate on Mallet Island. In his weakened state, Vergil is defeated, and transformed into Nelo Angelo, leading into the events of Devil May Cry. Vergil challenges him in battle, though this battle is never seen. In the post-credits ending, as Sparda's son Vergil found himself trapped in the demon world, he comes upon Mundus, who glares down on him silently with his triple eyed avatar.

His demons attacked and killed Eva who was Sparda's wife, and Dante and Vergil's mother. In response, Mundus planned revenge against Sparda's family. Two millennia ago, Mundus planned to lead an assault on the human world but the powerful demon knight Sparda awoke to justice, leading him to single-handedly defeat both Mundus and his armies, and seal the main gate within the Underworld. And even after losing again, he still forced a smaller Hellgate open in a bid for vengeance on Dante. Mundus is also very driven by his goals, setting servant after servant to destroy Dante before finally taking the fight to the devil hunter himself. Like most other demons in the series, Mundus has a low opinion on humans, even going so far as to wonder if Dante's human heritage had weakened his father's blood. He has no loyalty or compassion for his minions, ruthlessly killing one of his own generals for being unable to defeat Dante and pleaded for his master's aide, or even use Trish as a bargaining chip over Dante to ensure an easy victory, which could be seen as cowardly. Mundus is depicted as the epitome of evil. He is seen this way while communicating with Griffon, Trish, and before battling Vergil. Mundus also has a form where he appears as three glowing orbs (eyes) arcing with energy. Mundus usually resides inside of a large marble statue, which is how both Dante and Trish see him for the first time. He appears much like a typical angel, dozens of feet tall, with white feathered wings and a third eye on his forehead.

Mundus devil may cry 1