Editing Sonic the Hedgehog series (section)

===Super transformation ===
{{main|Super transformation}}
[[File:Sonic Art Assets DVD - Super Sonic - 1.png|200px|thumb|[[Super Sonic]]]]
Since the 16-bit version of ''Sonic the Hedgehog 2'', Sonic has had the ability to transform into the faster and practically invulnerable '''Super Sonic''' once all seven Chaos Emeralds are collected. After that, Super Sonic can be used in any of the following levels once fifty rings have been collected, although one ring is lost for every second Sonic remains in this empowered form.

In the ''Sonic Adventure'' titles, the Special Stages were omitted entirely and Chaos Emeralds were collected in non-interactive cutscenes as part of the story, with Super Sonic only appearing in the climactic final boss fight. This received criticism by many fans, who appreciated the additional replay value offered by retrying a game's Zone levels with Super Sonic's additional advantageous abilities as seen in the Sega Genesis/Mega Drive games. Despite several games since returning to the emerald-collecting of the 2D platform titles (including the ''Sonic Advance'' series, ''Sonic Heroes'', and ''Sonic Rush''), Super Sonic was again only playable at the end of the game. <!-- I don't have a source for this next line, so commenting it out until I do: When confronted with the question as to why this was, all Naka would say was "The fans like it better this way." -->

However, ''[[Sonic Colors]]'' and ''[[Sonic Lost World]]'' returned the ability to access a super transformation in normal levels. They were also some of the few recent games to omit a Super transformation from the final boss battle.

Other characters have also been able to utilize the super transformation. In ''Sonic & Knuckles'', [[Knuckles the Echidna]] could also transform into '''[[Super Knuckles]]'''. By locking-on ''Sonic & Knuckles'' to ''Sonic the Hedgehog 3'', '''[[Hyper Sonic]]''', '''[[Hyper Tails]]''' and '''[[Hyper Knuckles]]''' also become available, by collecting all seven Super Emeralds in addition to the seven Chaos Emeralds. In the collection game ''[[Sonic Origins]]'', ''[[Sonic 3 & Knuckles]]'' is only available in the locked-on form. This collection added [[Super Tails]] to the game, which is the super transformation of Tails as seen in ''Sonic Heroes''. In ''[[Sonic Adventure 2]]'', '''[[Super Shadow]]''' also appeared at the end of the Last Story, who fought alongside Super Sonic to destroy the [[Biolizard]], and he himself fought [[Black Doom]] in ''[[Shadow the Hedgehog (game)|Shadow the Hedgehog]]''. In ''[[Sonic Rush]]'' and ''[[Sonic Rush Adventure]]'', '''[[Burning Blaze]]''' appears for the extra boss, similar to the end of ''Sonic Adventure 2''. She uses the term "Burning" instead of "Super" as she uses the [[Sol Emerald]]s instead of the Chaos Emeralds. In [[Sonic the Hedgehog (2006)|''Sonic the Hedgehog'' (2006)]], '''[[Super Silver]]''' appears along with Super Sonic and Super Shadow.

A feature unique to Sonic is his ability to use super transformations using different sources of power other than the Chaos Emeralds, each with its own unique abilities. For ''[[Sonic and the Secret Rings]]'', Sonic used the World Rings to become '''[[Darkspine Sonic]]'''. In ''[[Sonic Unleashed]]'', Sonic had the ability to turn into '''[[Sonic the Werehog]]''' from the power of [[Dark Gaia]]. In ''[[Sonic and the Black Knight]]'', Sonic transforms into '''[[Excalibur Sonic]]''' using the power of the sacred swords. Unlike the traditional Super States, however, Sonic is not invincible in those forms. In ''[[Sonic Prime]]'', Sonic harness the [[Prism Energy]] from the [[Paradox Prism]] to transform into [[Shatter Sonic|'''Shatter Sonic''']]. In ''[[Sonic Frontiers]]'', Sonic learns to control his [[Cyber corruption]] and use it to transform into an evolved Super form named [[Super Sonic 2|'''Starfall Super Sonic''']]. He later goes all out and completely harness the Cyber corruption briefly becoming [[Super Sonic Cyber|'''Super Sonic Cyber''']].