Height: 5 foot 0
Age: 19
Appearance:
Mephiles has four forms. His original form was an amorphous mass of darkness, which emitted an aura and behaved similarly to liquid. In his second form, Mephiles appeared almost identical to Shadow the Hedgehog, aside from having green eyes with slit pupils, a pale-skinned muzzle with no mouth (though his muzzle moves when he speaks, as if he does have one), and the fact that everything that is red on Shadow is a grayish-green on Mephiles. Just like Shadow, he had rings on his wrists and ankles. His third and most iconic form was a crystalline, anthropomorphic hedgehog appearance with no mouth, nose or even feet. Instead, his legs ended in a purplish mist. His eyes also change color in this form, gaining reddish-pink sclera and lime green irises, while his quills were bushier and ended in white tips. Lastly, his hands, gloves and all, became crystalline like his arms, with the fingers now ending in white-tipped claws.
Personality:
Born and split from the experiments done on the sun god Solaris, Mephiles can be described as a sentient being of pure darkness, craving destruction against the world. Mephiles is a heartless and cunning sadist with no sense of compassion or empathy, who will do anything to accomplish his goal of fusing with his split half, Iblis, who is trapped inside Princess Elise. However, despite his pride, he relies on manipulation and hiding in the dark, waiting for the right moment to strike.
Mephiles is completely calm, emotionless, falsely affable, and completely patient, all traits of his manipulative nature. He is not shown losing his temper or raising his voice, even when angered or injured. If Mephiles is angered, as it happened when Shadow refuse his offer to join him, he would be disappointed and hostile without losing his patience. His affable nature is also shown when he politely bowed to Shadow after taking his form in appreciation, though this likely was a mocking gesture.
As a being of darkness craving destruction, Mephiles is a nihilistic misanthrope. During his final battle against Shadow, he asked him why he bothered to fight him, defending humanity despite them persecuting him as a scapegoat in the future. Mephiles interest in people is mostly a means to an end, just like how he wanted to "help" Silver save the future by killing Sonic, when in reality he wanted to unite with Iblis; otherwise, he shows little interest on anyone but Shadow the Hedgehog, whom he personally hates for sealing him in the Scepter of Darkness.
