Sonic the Hedgehog Extreme (May 27, 2003 prototype) - Hidden Palace
Sonic the Hedgehog Extreme (May 27, 2003 prototype) - Hidden Palace
Fans Resurrect "Sonic X-Treme," The Sega Saturn Game That Never Was
Sonic Extreme Archives - Sonic Retro
New Details on Cancelled 'Sonic Extreme' Game Surface; Developers Claim SEGA Used Its Concept For Sonic Riders « SEGADriven
Sonic Extreme - Wikipedia
Sonic the Hedgehog Extreme (May 27, 2003 prototype) - Hidden Palace
sonic extreme (skate board) | 3D Warehouse
Sonic Extreme (Cancelled 2003-2006 Xbox Game) | Lost Media Archive | Fandom
Sonic the Hedgehog Extreme (May 27, 2003 prototype) - Hidden Palace
Extreme Gear | Sonic News Network | Fandom
Footage of canceled 'Sonic Extreme' hoverboarding game | Engadget
Sonic Riders | Xbox Wiki | Fandom
Sonic the Hedgehog Extreme (May 27, 2003 prototype) - Hidden Palace
Sonic the Hedgehog Extreme (May 27, 2003 prototype) - Hidden Palace
Sonic Extreme Xbox: Revisiting the Dead Sonic Skateboarding / Hoverboarding Game | NeoGAF
Sonic Extreme - Wikipedia
Cancelled Sonic Skateboarding Game Revealed
![Sonic Extreme [XBOX - Prototype / Pitch] - Unseen64](https://www.unseen64.net/wp-content/uploads/2019/05/tiltronica-xbox-vision-scape-cancelled-12-150x150.jpg "Sonic Extreme [XBOX - Prototype / Pitch] - Unseen64")
Sonic Extreme [XBOX - Prototype / Pitch] - Unseen64
Sonic Heroes - Wikipedia
Gaming Mysteries: Sonic The Hedgehog Extreme (Xbox) UNRELEASED - Sonic the Hedgehog video - Fanpop
:format(png)/cdn.vox-cdn.com/uploads/chorus_image/image/54671353/Screen_Shot_2017_05_08_at_10.56.32_AM.0.png "Sonic the Hedgehog's abandoned skateboarding game surfaces - Polygon")
Sonic the Hedgehog's abandoned skateboarding game surfaces - Polygon
Sonic ExtReme for the GBA? | Sonic and Sega Retro Forums
Sonic X-Treme | Cancelled Games Wiki | Fandom
