Megadrive

Sonic The Hedgehog

Sonic The Hedgehog 2

Sonic The Hedgehog 3

Sonic & Knuckles

Sonic Spinball

Sonic 3D: Flickies Island

Mean Bean Machine

Sonic The Hedgehog CD

Knuckles Chaotix

Sonic Compilation
Game Gear
Sonic The Hedgehog
Sonic The Hedgehog 2
Sonic Chaos
Sonic Spinball
Sonic Triple Trouble
Mean Bean Machine
Sonic Labyrinth
Sonic Blast
Sonic Drift
Sonic Drift 2
Tails' Adventure
Tails' Skypatrol
 
Sega Saturn
NiGHTS Into Dreams...
Burning Rangers
Sonic R
Sonic Jam
Sonic 3D: Flickies Island
Christmas NiGHTS
 
Dreamcast
Sonic Adventure
Sonic Adventure 2
Sonic Shuffle
Phantasy Star online/V2
Chu Chu Rocket
Samba De Amigo
 
Gamecube
Sonic Adventure 2: Battle
Sonic Mega Collection
Sonic Adventure DX
Sonic Heroes (Multi)

Billy Hatcher

PSO Episode 1&2
PSO Episode 3
Sonic Gems Collection
Sonic Riders
 
Playstation 2
Astro Boy
SEGA Superstars
Phantasy Star Universe
Shadow The Hedgehog
(multi)
 
Gameboy Advance
Sonic Advance
Sonic Advance 2
Sonic Advance 3
Sonic Pinball Party
Sonic Battle
 
Nintendo DS
Puyo Pop Fever
Feel the Magic XX / XY
Rub Rabbits!!
Sonic Rush
 
NGPC
Sonic Pocket Adventure
 
N-Gage
SonicN
 
Game.com

Sonic Jam Game.com

 
Arcade
Sonic The Fighters
SEGASonic Arcade
 
Megadrive
Sonic The Hedgehog 2

Sonic The Hedgehog 3

Sonic Spinball
Sonic Crackers
Sonic CD v.510
Sonic CD v.712 & v.920
 
Game Gear
Sonic The Hedgehog
 
Sega Saturn
Sonic X-Treme
Sonic X-Treme 718
Sonic R: Trial Version
 
Dreamcast

Sonic Adventure 2: Trial

Sonic Adventure 2 Preview

 
Xbox

Sonic Heroes Alpha

Sonic Heroes E3 Demo

 
Xbox 360
Sonic Next-Gen
 
Gameboy Advance
Sonic Advance 3
 
Nintendo DS
Sonic DS - e3 Demo
 
Arcade
SEGASonic Arcade
 
Megadrive
Sonic The Hedgehog
Sonic The Hedgehog 2
Sonic The Hedgehog 3
Sonic & Knuckles
Sonic 3D: Flickies Island
Sonic Jam 6
 
Master System

Sonic Blast

 
Original Nintendo
Somari the Adventurer
Jurassic Boy 2
Family Kid
Sonic 3D Blast 5
Sonic 3D Blast 6
 
GameBoy/Advance
Jurassic Boy 2

Sonic 6

Sonic 3D Blast 5

Sonic Adventure 7

Sonic Advance
Sonic Advance 2
Sonic Advance 3

Sonic Pinball Party

Sonic Adventure 8
 
Super Nintendo

Sonic The Hedgehog 4

 
SoST Forum
FAQ
Time Capsule - SoStH
 
 
Pre Release Adventure Sketches

Thanks to IceKnight, Jagboy, Solly, and Reala for finding these sketches from the Dreamcast Digital Presskit given away at the Nürnberges Spielwaren Messe in 1999

Here is some concept artwork for Big. Looking at this, it looks like they originally were trying to make him look like the cat-like figure seen in Miyazaki's japanese animated features. Click the image for more artwork of Big.

Sketches of the 4 returning heroes showing their height differences, like some of the artwork back in the Megadrive days. Click the image for a larger version.

Heres some concept artwork of E-102 Gamma, showing that at one point he had a very different look to him. Here he looks much more like the Eggbot from Sonic R, and some other images show that he once had a lump on the back of his head, and his arms were attached to the black part of his body. Click the image for the full size.
One for the classic fanatics, this shows some Eggman sketches before he got his new clothing, with his original red shirt, goggle-less head, and Mickey Mouse pants. It also shows the transition between this and his final design. Click the image for more.
This artwork shows off some of Amy and Knuckles' character design changed, most likely pinpointing certain attributes they have. Click the image for the larger scale version.
A quick sketch of Sonic in his new, Sonic Adventure styled form. It also points out his his torso works. Click the image for the full version.
Here is a very 'How to draw Sonic' - like sketch showing the bits and pieces of Sonic's new head. Click the image for the full version.
Heres an interesting new find, the only character sketch of Tikal in the world! No Tikal imagry was found in any other internet releases. Kojichao with her graphical prowess has recreated the image to look like final Sonic Adventure artwork. Click each image for their full sizes.