

After Fight to the Finish 2 Arc, the Heroes Of Legend had fell from their grace due to Mehpiles, he later hid in Smash City in attempting to escape from them being in disguised, however since Tikal resided here, she saw the disguised Mephiles and was confronted him, revealing his identity to her, she challenges him to an fight, where if she wins he will reveal what he has done and if he wins he will escape.
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Eggman, and joins the villains from that point onward. Mephiles then attempts to fight Wiseman, but is defeated quickly despite summoning Iblis to the fight and flees into the sewers. Mephiles later watches as the heroes battle against the villains, but captures the energy produced by the battle and gives it to Tikal, though his reasons for doing so are unknown. Before the battle, Mephiles states that he has been lost in limbo, but the Time Eater has given him the chance to live again. Mephiles takes notice of the Dark Heroes of Legend and their comrades who felt the earthquake caused by the Death Egg, prompting Mephiles to challenge Sonic the Hedgehog, Goku, and Link so he can test their abilities. Eggman mobilises the Death Egg, where he is seen observing the Death Egg emerge from the water.

Mephiles is responsible for a majority of the events within the series, such as the Heroes of Legend and Ben Tennyson's fall from grace, as well as Shadow the Hedgehog's exile from the heroes among other events. Mephiles the Dark is one of the main antagonists of Super Smash Bros.
