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- Sonic & Knuckles Prototype 0525
- Sonic & Knuckles Prototype 0606
- Sonic & Knuckles Prototype 0608
- Sonic & Knuckles Prototype 0610
- Sonic & Knuckles Prototype 0612
- Sonic & Knuckles Prototype 0618
- Sonic & Knuckles Prototype 0619
- Sonic & Knuckles Sonic the Hedgehog 3
- Sonic & Knuckles US Strategy Guide
- Sonic & Knuckles achievements
- Sonic & Knuckles bug list
- Sonic & Knuckles enemies
- Sonic & Knuckles level maps
- Sonic & Knuckles magazine articles
- Sonic & Knuckles print advertisements
- Sonic & Knuckles television advertisements
- Sonic & Sega All-Stars
- Sonic & Sega All-Stars Racing
- Sonic & Sega All-Stars Racing/Achievements
- Sonic & Sega All-Stars Racing/Changelog
- Sonic & Sega All-Stars Racing/Collection
- Sonic & Sega All-Stars Racing/Development
- Sonic & Sega All-Stars Racing/Downloadable content
- Sonic & Sega All-Stars Racing/Missions
- Sonic & Sega All-Stars Racing (J2ME)
- Sonic & Sega All-Stars Racing (Nintendo DS demo)
- Sonic & Sega All-Stars Racing (Wii preview)
- Sonic & Sega All-Stars Racing (Xbox 360 prototype; 2009-12-01)
- Sonic & Sega All-Stars Racing Arcade
- Sonic & Sega All Stars Racing
- Sonic & Sega All Stars Racing/Achievements
- Sonic & Silver Sonic
- Sonic & Tails
- Sonic & Tails (fan game)
- Sonic & Tails 2
- Sonic & Tails Demonstration Sample
- Sonic & Tails Jitsuenyou Sample
- Sonic & Tails Sample
- Sonic & Tails Spinner
- Sonic & The Black Knight
- Sonic '06
- Sonic (Adventure Island Pirate)
- Sonic (Adventure Island pirate)
- Sonic (Keychain LCD game)
- Sonic (LCD game)
- Sonic (amiibo)
- Sonic (keychain LCD game)
- Sonic (keychain LCD game) Manual
- Sonic - Code Gray
- Sonic - Hyper X
- Sonic - The Lost Land
- Sonic - The Lost Land 2
- Sonic - You Can Do Anything
- Sonic 06
- Sonic 1
- Sonic 10th Anniversary
- Sonic 1337
- Sonic 16
- Sonic 1: Bouncy Edition
- Sonic 1: Harder Levels
- Sonic 1: Painto Edition 2
- Sonic 1: The Other Extended Edition
- Sonic 1: The Special Stages
- Sonic 1: Two-Eight
- Sonic 1: WTF LAME
- Sonic 1 & Knuckles
- Sonic 1 (16-bit)
- Sonic 1 (8-Bit)
- Sonic 1 (8-bit)
- Sonic 1 - Metal Sonic Hack
- Sonic 1 - Over 9000
- Sonic 1 - Return to the Origin
- Sonic 1 - Text Code Generator
- Sonic 1 - The Next Level
- Sonic 1 32X
- Sonic 1 32x
- Sonic 1 @ SAGE
- Sonic 1 @ SAGE 2010
- Sonic 1 Alt
- Sonic 1 Amiga
- Sonic 1 Beta Hoax
- Sonic 1 Beta Remake
- Sonic 1 Bouncy Edition
- Sonic 1 BroTro
- Sonic 1 Brother Trouble
- Sonic 1 Cheats
- Sonic 1 Color Contrast
- Sonic 1 Dragon Edition
- Sonic 1 Easy mode
- Sonic 1 Exception handler
- Sonic 1 GG
- Sonic 1 Game Gear
- Sonic 1 Genesis
- Sonic 1 Harder Levels Version
- Sonic 1 Harder Version
- Sonic 1 Lunacy
- Sonic 1 Master System
- Sonic 1 Maze-o-matic
- Sonic 1 Megamix
- Sonic 1 Mobile
- Sonic 1 No-Name
- Sonic 1 Open World Experiment
- Sonic 1 PC
- Sonic 1 Pixel Perfect
- Sonic 1 Plus
- Sonic 1 Remastered (hack)
- Sonic 1 Return to the Origin
- Sonic 1 Special Stage Editor
- Sonic 1 Special Version
- Sonic 1 The Blue Blur
- Sonic 1 With Fries
- Sonic 1 and 2
- Sonic 1 and the Secret Extended Edition
- Sonic 1 bug list
- Sonic 1 prototype
- Sonic 1 with RedBook audio
- Sonic 1 with Redbook Audio
- Sonic 2
- Sonic 2006
- Sonic 20th Anniversary
- Sonic 20th Anniversary/Changelog
- Sonic 25th Cafe Selection
- Sonic 2: Advanced Edit
- Sonic 2: Aluminium Edition
- Sonic 2: Aluminum Edition
- Sonic 2: Battle Race
- Sonic 2: Rebirth
- Sonic 2: Return of Shadow
- Sonic 2: Revamped
- Sonic 2: Robotnik's Revenge
- Sonic 2: S3 Edition
- Sonic 2: Sweet Relief
- Sonic 2 & Knuckles
- Sonic 2 & Knuckles Long Version
- Sonic 2 (16-bit)
- Sonic 2 (8-bit)
- Sonic 2 (8-bit) Level Maps
- Sonic 2 (8 bit)
- Sonic 2 (film)
- Sonic 2 - Text Code Generator
- Sonic 2 - The Hybridization Project
- Sonic 2 8-bit
- Sonic 2 Advanced Edit
- Sonic 2 Adventure Control
- Sonic 2 Adventure Edition
- Sonic 2 Algorithms & Specs Patents
- Sonic 2 Alpha
- Sonic 2 Armageddon Game
- Sonic 2 Beta
- Sonic 2 Beta (site)
- Sonic 2 Beta 4
- Sonic 2 Beta 5
- Sonic 2 Beta 6
- Sonic 2 Beta 7
- Sonic 2 Beta 8
- Sonic 2 Beta Music
- Sonic 2 Beta Page
- Sonic 2 Beta Site
- Sonic 2 CD
- Sonic 2 Creators interview (December 1992)
- Sonic 2 Delta
- Sonic 2 Delta 0
- Sonic 2 Delta II
- Sonic 2 Dimps Edition
- Sonic 2 EX
- Sonic 2 Game Gear
- Sonic 2 HD
- Sonic 2 Hacking Guide
- Sonic 2 Heroes
- Sonic 2 Hybridization
- Sonic 2 In 1
- Sonic 2 JP Strategy Guide
- Sonic 2 LD
- Sonic 2 Long Version
- Sonic 2 MP3 Tool
- Sonic 2 Master System
- Sonic 2 Megamix
- Sonic 2 Millenium Edition
- Sonic 2 Millennium Edition
- Sonic 2 Multi-Jump
- Sonic 2 Nick Arcade
- Sonic 2 Recreation
- Sonic 2 Retro Remix
- Sonic 2 Revamped
- Sonic 2 SMS Remake
- Sonic 2 SMTP
- Sonic 2 Secret Rings Control
- Sonic 2 Secret Rings Edition
- Sonic 2 Spanish Promotional VHS
- Sonic 2 Spanish Promotional VHS/Chemical Plant Zone
- Sonic 2 Spanish Promotional VHS/Emerald Hill Zone
- Sonic 2 Spanish Promotional VHS/Hidden Palace Zone
- Sonic 2 Special Stage Editor
- Sonic 2 The Lost Levels
- Sonic 2 Time Attack
- Sonic 2 Titlecard Code Editor Python
- Sonic 2 Wai
- Sonic 2 XL
- Sonic 2 beta
- Sonic 2 beta 4
- Sonic 2 beta 5
- Sonic 2 beta 6
- Sonic 2 beta 7
- Sonic 2 beta 8
- Sonic 2 bug list
- Sonic 2 bugs
- Sonic 2 cd
- Sonic 2 hd
- Sonic 2 in 1
- Sonic 2 mobile
- Sonic 2 smtp
- Sonic 2sday
- Sonic 2z
- Sonic 3
- Sonic 3&K
- Sonic 3+
- Sonic 30th Anniversary Symphony
- Sonic 30th Anniversary Symphony (Live)
- Sonic 32X
- Sonic 32x
- Sonic 360
- Sonic 3:Fighter Sonic
- Sonic 3: Angel Island Revisited
- Sonic 3: Fighter Sonic
- Sonic 3C
- Sonic 3C 0408
- Sonic 3C 0408/Angel Island Zone
- Sonic 3C 0408/Mushroom Hill Zone
- Sonic 3C 0517
- Sonic 3C 091224
- Sonic 3D
- Sonic 3D: Director's Cut
- Sonic 3D: Flickies' Island
- Sonic 3D: Flickies' Island/Bugs
- Sonic 3D: Flickies' Island/Comparisons
- Sonic 3D: Flickies' Island/Development
- Sonic 3D: Flickies' Island/Hidden content
- Sonic 3D: Flickies' Island/Magazine articles
- Sonic 3D: Flickies' Island/Manuals
- Sonic 3D: Flickies' Island/Maps
- Sonic 3D: Flickies' Island/Promotional material
- Sonic 3D: Flickies' Island/Region coding
- Sonic 3D: Flickies' Island/Technical information
- Sonic 3D: Flickies' Island (Mega Drive) EU Manual
- Sonic 3D: Flickies' Island (Saturn tech demo)
- Sonic 3D: Flickies' Island (Saturn tech demo)/Comparisons
- Sonic 3D: Flickies' Island (beta 73)
- Sonic 3D: Flickies' Island (beta 73)/Comparisons
- Sonic 3D: Flickies' Island (beta 73)/Comparisons/Gene Gadget Zone
- Sonic 3D: Flickies' Island (beta 73)/Comparisons/Green Grove Zone
- Sonic 3D: Flickies' Island (beta 73)/Comparisons/Rusty Ruin Zone
- Sonic 3D: Flickies' Island (beta 73)/Hidden content
- Sonic 3D: Flickies' Island (beta 814)
- Sonic 3D: Flickies' Island (beta 814)/Comparisons
- Sonic 3D: Flickies' Island (beta 819)
- Sonic 3D: Flickies' Island (beta 825)
- Sonic 3D: Flickies' Island (beta 830)
- Sonic 3D: Flickies' Island (beta 831)
- Sonic 3D: Flickies' Island (beta 94)
- Sonic 3D: Flickies' Island (cartridge prototype)
- Sonic 3D: Flickies' Island (prototype 73)
- Sonic 3D: Flickies' Island (prototype 73)/Comparisons
- Sonic 3D: Flickies' Island (prototype 73)/Comparisons/Gene Gadget Zone
- Sonic 3D: Flickies' Island (prototype 73)/Comparisons/Green Grove Zone
- Sonic 3D: Flickies' Island (prototype 73)/Comparisons/Rusty Ruin Zone
- Sonic 3D: Flickies' Island (prototype 73)/Hidden content
- Sonic 3D: Flickies' Island (prototype 814)
- Sonic 3D: Flickies' Island (prototype 814)/Comparisons
- Sonic 3D: Flickies' Island (prototype 819)
- Sonic 3D: Flickies' Island (prototype 825)
- Sonic 3D: Flickies' Island (prototype 830)
- Sonic 3D: Flickies' Island (prototype 831)
- Sonic 3D: Flickies' Island (prototype 94)
- Sonic 3D: Flickies' Island Tech Demo
- Sonic 3D: Flickies' Island advertisements
- Sonic 3D: Flickies' Island bug list
- Sonic 3D: Flickies' Island magazine articles
- Sonic 3D: Flickies' Island print advertisements
- Sonic 3D: Flickies' Island test plan
- Sonic 3D: Flickies Island
- Sonic 3D: No Flickies
- Sonic 3D (Saturn tech demo)
- Sonic 3D (beta 73)
- Sonic 3D (beta 814)
- Sonic 3D (beta 819)
- Sonic 3D (beta 825)
- Sonic 3D (beta 830)
- Sonic 3D (beta 831)
- Sonic 3D (beta 94)
- Sonic 3D (cartridge prototype)
- Sonic 3D - Flickies' Island
- Sonic 3D Beta
- Sonic 3D Beta 73
- Sonic 3D Beta 814
- Sonic 3D Beta 819
- Sonic 3D Beta 825
- Sonic 3D Beta 830
- Sonic 3D Beta 831
- Sonic 3D Beta 94
- Sonic 3D Blast
- Sonic 3D Blast! Survival Guide for Saturn and Genesis
- Sonic 3D Blast: Flickies' Island
- Sonic 3D Blast (LCD game)
- Sonic 3D Blast (beta 73)
- Sonic 3D Blast 5
- Sonic 3D Blast 5/Bugs
- Sonic 3D Blast 5/Comparisons
- Sonic 3D Blast 5/Hidden content
- Sonic 3D Blast 5/Maps
- Sonic 3D Blast 5 (NES)
- Sonic 3D Blast 6
- Sonic 3D Blast Beta
- Sonic 3D Blast Survival Guide
- Sonic 3D XMas
- Sonic 3K
- Sonic 3 & Knuckles
- Sonic 3 & Knuckles: The Challenges
- Sonic 3 & Knuckles - Behind the Scenes (GamesTM issue 60)
- Sonic 3 & Knuckles - No Ring Challenge
- Sonic 3 & Knuckles Level Maps
- Sonic 3 & Knuckles bug list
- Sonic 3 & Knuckles chronology and endings
- Sonic 3 & Knuckles chronology and endings/Character Icons
- Sonic 3 & Knuckles level maps
- Sonic 3 A.I.R.
- Sonic 3 Beta Hoax
- Sonic 3 Complete
- Sonic 3 Complete (hack)
- Sonic 3 Customizable
- Sonic 3 Cz
- Sonic 3 Delta
- Sonic 3 Fighter Sonic
- Sonic 3 Fighter Sonic/Comparisons
- Sonic 3 Fighter Sonic/Hidden content
- Sonic 3 Limited Edition
- Sonic 3 and Amy Rose
- Sonic 3 and Knuckles
- Sonic 3 and Knuckles Level Maps
- Sonic 3 and Sally Acorn
- Sonic 3 and knuckles
- Sonic 3 bug list
- Sonic 3 in 1
- Sonic 3d
- Sonic 4
- Sonic 4: Episode 1