Majin Sonic is a disturbing easter egg in Sonic CD. To open it, the player must go to the sound test and enter these numbers: 46, 12, 25. It shows a bizarre screen with rows of multiple Sonics with disturbing, human-like faces wagging their fingers.
Here, "majin" simply refers to an alternate reading of Sega designer Masato Nishimura's own name (he voiced Sonic himself in the game). "Majin" was apparently Nishimura's childhood nickname, and as such has sneakily found its way into a few games on which Nishimura himself worked, such as Shenmue.
Majin Sonic is an antagonist in the Vs. Sonic.exe mod of Friday Night Funkin'.
Masato Nishimura (西村 真人, Nishimura Masato?), also known as Majin/Mazin (まぢん, Majin/Mazin?), is a designer at Sega. In Sonic the Hedgehog CD, he was responsible for the infamous "Infinite fun" hidden image and provided the voice for Sonic.
Super Sonic, also known by fans as Fleetway Super Sonic or Evil Super Sonic, is a major antagonist in Fleetway's Sonic the Comic.
A message in front of the background appear in Japanese in white text, which translates loosely to "Fun is infinite with SEGA Enterprises.
Sonic.exe: Spirits of Hell: Round One
Exeller is the main antagonist and therefore plays a major role. Sonic was walking in Green Hill, and talked to Tails before being possessed by Exeller. Exeller took over Sonic's body.
Scourge the Hedgehog (formerly known as Anti Sonic or Evil Sonic) was an evil version of Sonic the Hedgehog from Moebius. Unlike Sonic, Scourge mistreated others, was selfish and greedy, and had a great desire for power.
The answer to this lifelong debate was that Majin Sonic does not have a mustache, but that is simply cheekbone shadowing. Additionally, despite the mustache-like appearance of Majin Sonic's cheekbone shadowing, the actual depiction of Majin Sonic is correctly shown in other renditions of Majin Sonic.
Unfortunately, he's also the one whose backstory gets way darker than you'd expect. From dead parents to nervous breakdowns to being named by his bullies, here's why Tails from Sonic has a ridiculously depressing backstory.
Despite this, Silver briefly concluded that the traitor was Bunnie, who didn't join the group until later. The appearance of Mecha Sally on the cover of this issue led to fan speculation that Sally Acorn herself was the traitor to the Freedom Fighters. This was later confirmed in StH: #247.
After Sonic fell to Earth in-place of Shadow, he awoke with no memory of his life; at the beginning of Sonic Heroes. With the help of Rouge and Omega, he began his mission to seek out the truth about who he is - all the while suffering from painful flashbacks of past events.
Scourge the Hedgehog, Sonic's evil twin, is on the attack!
Manic The Hedgehog, a character from Sonic Underground, is Sonic's brother and the drummer in the sibling's band. Manic is the most laid back of the family (yes, there's somebody more laid back than Sonic), though perhaps this is because he doesn't have any powers.
His Dad!? After his father was turned evil because of an experiment gone wrong, Sonic and Robotnik teamed up to kill Sonic's dad with a giant robot. Sonic the Hedgehog and Dr. Ivo “Eggman” Robotnik have been deadly enemies since they debuted in the first Sonic the Hedgehog game in 1991.
The Majin Brand
The emblem is a seal of the evil wizard family's magic. Those branded with the mark gain incredible power, augmented by either wizard's dark enchantments. However, the price of this strength often means those possessed are left under the control of the wizards, with their inner evils being brought out.
Due to Exe's immense powers, he views himself as a god, which he technically is since he created his world.
Metal Sonic is the secondary antagonist of the Sonic the Hedgehog video game franchise. He is an evil robotic version of Sonic the Hedgehog created by the mad scientist Dr. Ivo "Eggman" Robotnik, Most of the time, Metal Sonic is Dr. Eggman's right-hand and completely obedient enforcer.
Using evidence they gathered along the way, Tails and the player determine that Espio was the villain of the murder mystery game, and knocked Sonic out with a blowdart.
Mephiles the Dark is the main antagonist of the 2006 platform game Sonic the Hedgehog, serving as the main antagonist of Shadow's Story, the secondary antagonist of Silver's Story and the overarching antagonist of Sonic's Story.
Fleetway Sonic is a main antagonist of the "Sonic the Comic" made by Sega. This version of Sonic is the pure chaos energy of Super Sonic and what would have happened if he won.