

X can manipulate Dark Matter, maybe thus caused it to be blue, and it has to be X because the series fits with only one Sonic Exe, that's X.

However, the series is based on the game, thus this Sonic Exe has to be X, a demon taking the form of Sonic made out of Dark Matter. It remains unclear as of right now as to how Eggman created Sonic.EXE. It's implied that he was originally planned to have been a copy or recreation of Metal Sonic, though that is yet to be confirmed. It has been seemingly confirmed by Bratwurst in his video "Sally.EXE Finale Teaser" that he was created by Dr.Sonic.exe Trilogy (Parts 1,2, and 3) Trivia Sonic.EXE is not above torturing and using the brainwashed husks of his victims to do his bidding, treating the reanimated Amy as a mere pawn and is instead focused on stealing the souls of his victims. Ultimately, Sonic.EXE is an arrogant being primarily concerned with gaining power, forcing the souls of his victims into becoming his power-source to transform him into numerous transformative states so he can become the most powerful being in the world. It's possible that this is a façade to mask his true evil and self-aware nature. Earlier on in his killing spree, Sonic.EXE was far more animalistic and unhinged, often seen with his mouth agape and tilting his head when confronting his prey.

Completely devoid of remorse or empathy, Sonic.EXE had slaughtered many innocent animals prior to Tails' demise and even relishes in the fear he instills within his victims, much like his murder of Tails, screeching demonically at him before proceeding to cut him clean in half. A demonic, murderous incarnation of the blue blur, Sonic.EXE is ruthless, violent, sadistic, and monstrous, especially in his methods of killing his victims, preferring to perform horrible acts of mutilation or prolonging their inevitable deaths just for the sake of it.
