All pages
- Mr. Arrunda
- Mr. Dr. Eggman
- Mr. Needlemouse
- Mr. Needlemouse (hack)
- Mr. Stewart
- Mr. Tanaka
- Mr. Tinker
- Mt. Mobius
- Mt Mobius
- Muckfoot (episode)
- Mukaka
- Multi-Tails
- Multi-dimensional Sonic Adventure 2 Original Sound Track
- Multi-lock
- Multitap
- Mum
- Mummy Dearest
- Mummy Dearest (transcript)
- Murder of Sonic the Hedgehog
- Mushmeanie
- Mushroom Hill
- Mushroom Hill (Sonic Generations 3DS)
- Mushroom Hill (Sonic the Fighters)
- Mushroom Hill Zone
- Mushroom Hill Zone Boss
- Mushroom Hill Zone Sub-boss
- Mushroom Kingdom Fusion
- Mushroom Planet
- Mushroom Valley
- Mushroom Valley Zone
- Music
- Music Galaxy - Sonic the Hedgehog (Sega Players Enjoy Club, November 1990)
- Music Plant
- Music Pointer Fixer
- Musta Been a Beautiful Baby
- Muteki
- Mutsuhiro Fujii
- Muttski
- Muugaden
- My Destiny
- My Fair Sticksy
- My Sweet Passion
- Mystic Cave
- Mystic Cave (Sonic Drift 2)
- Mystic Cave Zone
- Mystic Cave Zone Boss
- Mystic Haunt Zone
- Mystic Mansion
- Mystic Melody
- Mystic Ruins
- Mystic Ruins (Sonic Chronicles: The Dark Brotherhood)
- N'rrgal
- N'rrgal Colony
- N'rrgal Queen
- N-Gage
- N-gage
- N.I.D.S.
- NAOMI
- NBA 2K
- NCZ
- NDS
- NES
- NGHZ
- NG Alphas - Sonic X-treme (Next Generation, July 1996)
- NICOLE
- NIDS
- NPZ
- Nack
- Nack the Weasel
- Nagao N. Gee
- Nagus
- Nakayoshi Chao!
- Nal
- Namco Bandai Games
- Nanako Yarimizu
- Nao Chan
- Naofumi Hataya
- Naoto Ohshima
- Naoto Oshima
- Naoto Oshima interview by Gamasutra (December 4, 2009)
- Naoto Ōshima
- Nathalie Fourdraine
- Nature Zone
- Naugus
- Nebula
- Needle Man
- Needlemouse
- Needlenose
- Nega
- Nega's Camera
- Nega-Mother Wisp
- Nega-Wisp Armor
- Nega-Wisp Armor (DS)
- Neko Productions
- Nelson Thorndyke
- Nemesis Compression
- Nemesis Format
- Nemesis MD Programs
- Nemesis compression
- Nendoroid Knuckles
- Nendoroid Tails
- Neo-Sonic 3
- Neo Geo Pocket Color
- Neo Green Hill Zone
- Neo Metal Sonic
- Neo South Island Zone
- Neo South Island Zone Boss
- Neo Target
- Neon Palace
- Neon Palace Zone
- Neon Palace Zone Boss
- Neptune
- Nestor the Wise
- Network Terminal
- Neuro-Immune Deficiency Syndrome
- Neuro-Immuno Deficiency Syndrome
- Neuro Immuno Deficiency Syndrome
- Neuro Immunodeficiency Syndrome
- Never Lake
- Never Turn Back
- New Determination
- New Echidna in Town
- New Motora
- New Year's Retribution
- New Yoke City
- News - Chaotix (Mean Machines Sega, March 1995)
- News - Knuckles' Chaotix (Mean Machines Sega, March 1995)
- News - Sonic Adventure (Computer & Video Games, October 1998)
- News - Sonic Spinball (Mean Machines Sega, August 1993)
- News - Sonic the Hedgehog (8-bit) (Mean Machines, October 1991)
- News - Sonic the Hedgehog (Mean Machines, February 1991)
- News - Sonic the Hedgehog 2 (Mean Machines, August 1992)
- News Zone (Sonic the Comic, 25th December 1993)
- Newtrogic High Zone
- Newtron
- Newtron (Sonic the Hedgehog 16-bit)
- Newtron (Sonic the Hedgehog 8-bit)
- Next
- Next Generation - Sonic X-treme preview
- Next Top Villain
- Nezu
- NiGHTS
- NiGHTS: Journey of Dreams
- NiGHTS Into Dreams
- NiGHTS Into Dreams...
- NiGHTS into Dreams
- Nibble
- Nibbles
- Nick Arcade
- Nick Arcade Episode
- Nick Arcade Episode/Chemical Plant Zone
- Nick Arcade Episode/Emerald Hill Zone
- Nick Arcade Episode/Emerald Hill Zone/Layout Change 01
- Nick Arcade Episode/Emerald Hill Zone/Layout Change 02
- Nick Arcade Episode/Emerald Hill Zone/Layout Change 03
- Nick Arcade Episode/Emerald Hill Zone/Layout Change 04
- Nicole
- Nicole the Holo-Lynx
- Nigel Dobbyn
- Nigel Kitching
- Nigel Kitching interview by Paul Street (August 11, 2008)
- Nigel Kitching interview by Sonic HQ (July 22, 1999)
- Night Babylon
- Night Carnival
- Night Carnival (Sonic Rush)
- Night Carnival Zone
- Night Carnival boss
- Night Chase
- Night Mode
- Night Palace
- Night Trap
- Night mode
- Night of the Werehog
- Night of the werehog
- Nightmare
- Nightmare Eggman
- Nightmare Maze
- Nightmare Zone
- Nights
- Nights 2
- Nightside Rush
- Nika Futterman
- Nimue
- Nimue, Lady of the Lake
- Nine's Lives
- NineKolor
- Ninja
- Nintendo
- Nintendo 3DS
- Nintendo DS
- Nintendo Entertainment System
- Nintendo GameCube
- Nintendo Game Boy
- Nintendo Game Boy Advance
- Nintendo Game Boy Color
- Nintendo Gamecube
- Nintendo Revolution
- Nintendo Super Famicom
- Nintendo Switch
- Nintendo Switch Online
- Nintendo Wii
- Nintendo Wii U
- Nishita
- No Brainer
- No Escape
- No Hedgehog Is an Island
- No Hedgehog Is an Island (transcript)
- No Place
- No Robots Allowed
- No Way Out
- No Way Through
- Nobuhiko Honda
- Nobutoshi Canna
- Nobutoshi Kanna
- Nocturne
- Nocturnus
- Nocturnus Clan
- Nocturnus Tribe
- Nocturnus clan
- Nocturnus echidnas
- Nokia
- Nokia N-Gage
- Nomad
- Nominatus
- Nominatus Rising
- Nonaggression
- Nonagression
- Norihiro Nishiyama
- Norihito Kato
- Noriyoshi Oba
- Noro-Noro
- Northstar Islands
- Not-so-Super Sonic 2
- Nova
- Novotrade
- Now Production
- Nowhere to Run
- Nuckles87
- NullDC
- Null Space
- Number Jump
- Number One
- Number Ring
- Nutwork
- Nybble
- Nybbles
- Nyororo
- OBZ
- ODZ
- OFLC
- OMG THE RED RINGS
- OMNI Khaos
- OOZ
- OST
- OVA
- Object
- Object RAM
- Object Status Table
- Object ram
- Ocean Base
- Ocean Base Boss
- Ocean Base Zone
- Ocean Base Zone Boss
- Ocean Palace
- Ocean Purification Plant
- Ocean Ruin
- Ocean Tornado
- Ocean View
- Ocean View (Team Sonic Racing)
- Oct
- Octopus
- Octopus (Sonic 3D: Flickies' Island)
- Octus
- Ofer Alon
- Office of Film and Literature Classification
- Official Player's Guide to Sonic the Hedgehog
- Offset index
- Og Man Out
- Oh! Ring
- Oil Desert Zone
- Oil Desert Zone Boss
- Oil Ocean
- Oil Ocean Zone
- Oil Ocean Zone (Sonic Mania)
- Oil Ocean Zone Boss
- Oil Ocean Zone Mini-Boss (Sonic Mania)
- Okitane Usui
- Old Man
- Old Man Owl
- Old Sonic
- Old log fortress
- Oldarg
- Oldbie
- Oldbies
- Oliver Wyman
- Olympus
- Omega
- Omega Arm
- Omni-Viewer
- Omni Khaos
- Omochao
- On Sight! The Sunken Ship in Southern Sea
- One Way Dream
- One to Succeed a God
- Onyx Island
- Oolean
- Opa-Opa Kart Racing
- Open Sonic
- Open Sonic Level maps
- Open Your Heart
- Opened Eyes
- Operation Revolution
- Orb Result
- Orbinaut
- Orbinaut (Sonic the Hedgehog 3)
- Orbinaut (Uni Uni, Sonic the Hedgehog 16-bit)
- Orbinaut (Uni Uni, Sonic the Hedgehog 8-bit)
- Orbinaut (Unidus, Sonic the Hedgehog 16-bit)
- Orbinaut (Unidus, Sonic the Hedgehog 8-bit)
- Orbot
- Orbs (Sonic Unleashed)
- Orca
- Orcan
- Organic batteries
- Organic battery
- Origin
- Original Definition
- Original Story
- Osamu Ogata
- Osamu Ohashi
- Osamu Sato
- Other Scrapped Sonic 2 Badniks
- Other Scrapped Sonic 2 Enemies
- Other Sonic X-treme levels
- Ototo
- Ouranos Island
- OutRun 2 SP
- OutRun Bay
- Outa Sano
- Outer Forest
- Outer Space cliche
- Outer Space cliché
- Outer space cliché
- Outlands
- Over the Bridge