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Beast Sonic

Biographical Information
  • Chronological: Same as Sonic
  • Physical: Indeterminable
  • The Beast
Physical Description
SpeciesHedgehog/Demonic beast
Imperfect Form
  • Fur: Blue w/ peach muzzle and chest
  • Eyes: Red
Semi-Perfect Form
  • Fur: Dark blue w/ peach muzzle and chest
  • Eyes: Red
  • Horns
Perfect Form
  • Fur: Black w/ gray muzzle and chest, and electric-blue markings
  • Eyes: Yellow w/ red irises
  • Horns
  • Wings
  • Gray fur on thighs, wrists and shoulders
Political Alignment and Abilities
  • Super strength
  • Super speed
  • Flight (Perfect Form only)
  • Advanced combat
  • Advanced Spectramancy
  • HellMagick (only in WTHBTB)
  • Fovomancy (only in WTHBTB)
  • Unconscious absorption of Chaos energy
Other Information
American V.A.
Japanese V.A.
Theme Song(s)
  • Dethklok - Laser Cannon Death Sentence
  • Resident Evil 5 - Evil Mutation (Semi-Perfect Form battle theme)
  • Resident Evil 5 - Wind of Madness (Perfect Form battle pt. 1 theme)
  • Resident Evil 5 - Deep Ambition (Perfect Form battle pt. 2 theme)
Original CreatorRyushusupercat

Beast Sonic is a "demonic" form of Sonic the Hedgehog. It is exclusive to the NAOSTH version of Sonic.

Physical Description

Imperfect Form

A total of 2 Chaos Emeralds are needed for this transformation. He resembles a much more feral and beast-like version of himself. His fur becomes shaggy and his quills lengthen.

Semi-Perfect Form

A total of 4 Chaos Emeralds are needed for this transformation, or 2 more Emeralds if Sonic is already in Imperfect Form. His appearance is upgraded; he becomes slightly larger, more bulky, and he grows long, curling horns. His fur and quills becomes longer and shaggier.

Perfect Form

All 7 Chaos Emeralds are needed for this transformation, or 3 more Emeralds if Sonic is already in Semi-Perfect Form. He becomes even larger, and grows large wings, as well as blood-red fur on his wrists, shoulders and thighs. He now has long, upward-curving quills on either side of his head, with more quills running down his back. His fur turns pitch black, and his muzzle and chest become blood-red. His tail is now very long and shaggy.


First Appearance

The Imperfect Form of ??? Sonic first appeared after Robotnik captured Manik; a small group of Freedom Fighters (led by Sonic) had come to rescue him. However, Robotnik was prepared; he knew that the FF's had found a Chaos Emerald, and demanded that they hand it over, or else Robotnik would kill Manik. The truth was, however, the Chaos Emerald was not currently in the possession of any of the rescuers at the time; it was hidden in Manik's backpack, unknown to either the other Knothole Freedom Fighters or Robotnik. Since the FF's couldn't give the Emerald to Robotnik, he electrocuted Manik, supposedly killing him. Wrought with grief and fury, Sonic began to exhibit a strangely feral and beast-like behavior, as he attacked Robotnik without thought. And then he began to transform into a savage monster.

After taking the now comatose Manik to Dr. Horatio Quack, it was soon discovered by Knuckles that the cause for Sonic's transformation (as well as Manik surviving the electrocution) was that the Chaos Emerald in his backpack had absorbed most of the electricity, charging it with more power. Sonic, being receptive to Chaos Energy, unknowingly absorbed all this extra power when he came close to Manik. This caused him to transform; his beast-like appearance was thanks to his fury.


When The Hero Becomes The Beast


Beast Sonic unconsciously absorbs Chaos energy into his body, with the rate of absorption increasing as he ascends to higher forms. In all three forms, he is capable of using advanced Spectramancy, as well as regular HellMagick and Fovomancy (although the latter two abilities are only seen in When The Hero Becomes The Beast).

Imperfect Form

His strength level is equal to that of his Hyper form.

Semi-Perfect Form

His strength is in between that of his Super form and his Hyper form.

Perfect Form

His power exceed his Hyper form. Since he grows large, draconic wings, he also gains the ability of flight. Any Chaos energy that he absorbs causes him to grow even stronger.


Beast Sonic thrives on death and destruction. He will attack almost anyone who crosses his path; however, the only people he won't raise a claw against are his mom, dad, uncle and little brother. This may be because they are related to him.

However, this changes in the Roleplay When The Hero Becomes The Beast.



Biggest Fears



Theme Song

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