subdirectory_arrow_right Sonic Generations (Game)
▲
1
▼
After finishing Green Hill Zone as modern Sonic in the original game, Sonic will mention to Tails that the area seems awfully familiar, with Tails saying "not to me." Green Hill Zone was from Sonic 1, while Tails didn't come into the series until Sonic 2, meaning Tails would have no memory of the area. In Sonic X Shadow Generations, this cutscene was completely re-recorded by the original voice cast to removed this reference by having both Sonic and Tails be familiar with Green Hill Zone and mentioning South Island, the main setting of Sonic 1.
subdirectory_arrow_right Sonic Generations (Game)
▲
1
▼
After defeating the final boss, Modern Tails & Classic Tails are briefly seen discussing something at Sonic's birthday party during the game's last cutscene. What they are talking about differs between the English and Japanese localizations of the original game.
In the English version, they said:
Classic Tails: He collects how many? Wow, where does somebody put all those gold rings?
Modern Tails: You know what? I don't know. I keep forgetting to ask.
In the Japanese version, they said:
Classic Tails: You added legs to the plane? What have you done to Sonic's Tornado?
Modern Tails: Yeah... I guess really did go overboard with the legs...
In Sonic X Shadow Generations, the English version of this cutscene was completely re-recorded by the original voice cast, where they now say:
Classic Tails: So I have a question for you. Once we're home, you think the timeline will be restored?
Modern Tails: Yep! Just... don't think about it too hard.
In the English version, they said:
Classic Tails: He collects how many? Wow, where does somebody put all those gold rings?
Modern Tails: You know what? I don't know. I keep forgetting to ask.
In the Japanese version, they said:
Classic Tails: You added legs to the plane? What have you done to Sonic's Tornado?
Modern Tails: Yeah... I guess really did go overboard with the legs...
In Sonic X Shadow Generations, the English version of this cutscene was completely re-recorded by the original voice cast, where they now say:
Classic Tails: So I have a question for you. Once we're home, you think the timeline will be restored?
Modern Tails: Yep! Just... don't think about it too hard.
Archived VGFacts forum thread:
https://archive.vgfacts.com/thread-2685-post-79487.html#pid79487
Sonic Generations English version:
https://www.youtube.com/watch?v=DmE5DY7iNCw#t=2732s
Sonic Generations Japanese version:
https://www.youtube.com/watch?v=JuOZ62XmQww#t=1230s
Sonic X Shadow Generations English version cutscene comparison:
https://www.youtube.com/watch?v=PxOeOpcGLAA#t=1845s
https://archive.vgfacts.com/thread-2685-post-79487.html#pid79487
Sonic Generations English version:
https://www.youtube.com/watch?v=DmE5DY7iNCw#t=2732s
Sonic Generations Japanese version:
https://www.youtube.com/watch?v=JuOZ62XmQww#t=1230s
Sonic X Shadow Generations English version cutscene comparison:
https://www.youtube.com/watch?v=PxOeOpcGLAA#t=1845s
▲
1
▼
Sonic X Shadow Generations' title was leaked a day prior to its reveal by notable leakers and a URL registration. Following the leaks, some fans and gaming news websites jokingly noted that the term "Sonic X Shadow" had previously also been used on the internet since the 2000s to refer to fan art, fan-fiction and slash fiction depicting the hedgehogs as a romantic couple.
▲
1
▼

Video explaining Terios:
https://www.youtube.com/watch?v=ZTF8SgV0Tws
Costume in Sonic X Shadow Generations:
https://www.youtube.com/watch?v=UJJ_WfDO9vk
Definition of where the name originates:
https://www.rep.routledge.com/articles/thematic/telos/v-1
https://www.youtube.com/watch?v=ZTF8SgV0Tws
Costume in Sonic X Shadow Generations:
https://www.youtube.com/watch?v=UJJ_WfDO9vk
Definition of where the name originates:
https://www.rep.routledge.com/articles/thematic/telos/v-1
▲
2
▼
After finishing the Chaos Island acts, one of the things Big the Cat will say to Shadow when talking to him in the overworld is that he had been on the ARK and that Shadow passed by him a few times while searching for Froggy, referencing the many cameos that he had in Sonic Adventure 2.
Big mentioning having been to the Space Colony ARK:
https://www.youtube.com/watch?v=Mz5WyDCOR30#t=12m30s
Big cameos in Sonic Adventure 2 (ARK levels in particular at 5:55, 10:15, 12:48, and some of the cutscenes):
https://www.youtube.com/watch?v=sRXQzJXH228
https://www.youtube.com/watch?v=Mz5WyDCOR30#t=12m30s
Big cameos in Sonic Adventure 2 (ARK levels in particular at 5:55, 10:15, 12:48, and some of the cutscenes):
https://www.youtube.com/watch?v=sRXQzJXH228
▲
2
▼
According to producer Shun Nakamura, the events of the DLC stage "Tokyo" (which sees Shadow being briefly sent to the reality of Paramount's "Sonic the Hedgehog" film series and inhabiting his counterpart's body) are meant to be treated as bonus content rather than being part of the game's main story or tied directly into the film series.
subdirectory_arrow_right Sonic Generations (Game)
▲
4
▼
After rescuing Knuckles in the original Sonic Generations, he asked Classic Sonic if he had suddenly gained weight, leading him to insecurely rub his belly. In Sonic X Shadow Generations, this scene was rewritten and re-recorded to instead have Knuckles ask if he knew where the rest of Angel Island is. However, the original animation where Classic Sonic rubs his stomach was left intact, appearing to imply that he ate Angel Island.
Related Games
Shadow the Hedgehog
Sonic & All-Stars Racing Transformed
Sonic Chronicles: The Dark Brotherhood
Sonic the Hedgehog 4: Episode I
Sonic Origins Plus
Sonic Advance 3
Sonic Boom: Shattered Crystal
Sonic Pinball Party
Sonic Adventure
Sonic the Hedgehog Extreme
Sonic CD
Sonic Dream Team
Sonic the Hedgehog Genesis
Sonic the Hedgehog
Sonic Colors
Sonic Origins
Sonic Dash
Sonic XS
Sonic Mania
Super Smash Bros. for Nintendo 3DS
LEGO Dimensions
Dr. Robotnik's Mean Bean Machine
Sonic the Hedgehog: Spinball
Tails' Skypatrol
Super Smash Bros. for Wii U
Sonic Advance 2
Sonic Lost World
Sonic Riders
The Murder of Sonic the Hedgehog
Sonic Mars
Mario & Sonic at the Rio 2016 Olympic Games
Sonic's Schoolhouse
Sonic 3D Blast
Sonic Runners
Sonic Forces: Speed Battle
Sonic Classic Collection
Sonic Shuffle
Sonic Adventure 2
Knuckles' Chaotix
Sonic Jam
Sonic Forces
Mario & Sonic at the Olympic Winter Games
Sonic X-treme
Sonic Adventure 2: Battle
Sonic and the Black Knight
Mario & Sonic at the Olympic Games
Sonic Generations
Sonic X
Sonic Drift 2
Sonic Riders