Konami Code

The Konami Code is a famous (and legendary) cheat code that appears in many of Konami's games. The code first appeared in 1986's Gradius for the Nintendo Entertainment System, but was popularized more with the release of Contra for the Nintendo Entertainment System.

The Konami Code found its way in most of Konami's games, but other non-Konami titles started to adapt and use the code as an easter egg.

Konami Games

• Gradius (NES)
• Gradius II (Famicom)
• Gradius III (SNES)
• Nemesis (Game Boy)
• Gradius Galaxies (GBA)
• Gradius IV Fukkatsu (PS2, PSP)
• Gradius V (PS2)
• Gradius ReBirth (Wii)
• Contra (NES)
• Operation C (Game Boy)
• Contra: Shattered Soldier (PS2)
• Neo Contra (PS2)
• Contra 4 (DS)
• Hard Corps Uprising (Xbox 360, PS3)
• Kid Dracula (Famicom)
• Castlevania: Bloodlines (Sega Genesis)
• Castlevania Chronicles (PlayStation)
• Castlevania: Harmony of Dissonance (GBA)
• Castlevania: Lords of Shadow (Xbox 360, PS3)
• Teenage Mutant Ninja Turtles: Fall of the Foot Clan (Game Boy)
• Teenage Mutant Ninja Turtles III: The Manhattan Project (NES)
• Teenage Mutant Ninja Turtles: The Arcade Game (NES)
• Teenage Mutant Ninja Turtles IV: Turtles in Time (SNES)
• Teenage Mutant Ninja Turtles: Tournament Fighters (SNES)
• Teenage Mutant Ninja Turtles (PS2, Xbox, GameCube, PC)
• Teenage Mutant Ninja Turtles (GBA)
• Dance Dance Revolution 2ndMix (Arcade, PlayStation)
• Dance Dance Revolution 2ndRemix (PlayStation)
• Dance Dance Revolution 3rdMix (Arcade)
• Dance Dance Revolution 5thMix (PlayStation)
• Dance Dance Revolution Extreme (Arcade, PS2)
• Dance Dance Revolution Ultramix (Xbox)
• Dance Dance Revolution Ultramix 2 (Xbox)
• Dance Dance Revolution SuperNova 2 (PS2)
• Dance Dance Revolution X (Arcade, PS2)
• Batman Returns (SNES)
• Beatmania GB (GBC)
• Blackmuse Series (Xbox 360, PC, Mac)
• Boktai: The Sun is in Your Hand (GBA)
• Crisis Force (Famicom)
• Deadly Arts (Nintendo 64)
• Death, Jr. (PSP)
• Death, Jr. 2: Root of Evil (PSP)
• Detana!! TwinBee (PC)
• DrumMania (Arcade)
• Fighting Eleven, International Superstar Soccer Deluxe (SNES)
• Flame of Recca: Final Burning (PS2)
• Frogger (Xbox 360)
• Gyruss (NES)
• Hellboy: The Science of Evil (PSP)
• International Superstar Soccer 98 (N64)
• International Track and Field 2000 (PlayStation)
• Konami Collector's Series: Arcade Advanced (GBA)
• The Legend of the Mystical Ninja (SNES)
• Metal Gear Solid 2: Sons of Liberty (PS2)
• Metal Gear Solid 2: Substance (PS2, Xbox, PC)
• Metal Gear Solid 3: Snake Eater (PS2)
• MLB Power Pros (PS2, Wii)
• Nagano Winter Olympics '98 (PlayStation, N64)
• NBA Give 'N Go (Famicom/NES)
• Pro Evolution Soccer 2012 3D
• Pop'n Twinbee (SNES)
• Raging Fighter (Game Boy)
• Rocket Knight (XBLA, PSN, Steam)
• Saw II: Flesh & Blood (PS3, PC, Xbox 360)
• Silent Hill 3 (PS2, PC)
• Silent Hill Homecoming (PS3, Xbox 360)
• Silent Hill: Origins (PSP, PS2)
• Tiny Toon Adventures: Wacky Sports Challenge
• Top Gun: The Second Mission (NES)
• Twinbee: Rainbow Bell Adventure (SNES)
• Yu-Gi-Oh! GX Tag Force (PSP)
• Yu-Gi-Oh! GX Tag Force 2 (PSP)
• Yu-Gi-Oh! GX Tag Force 3 (PSP)
• Yu-Gi-Oh! The Falsebound Kingdom (GameCube)
• Zone of the Enders: The 2nd Runner (PS2)

Non-Konami Games

• 3D Dot Game Heroes (PS3)
• A Knight's Story 2
• Achievement Unlocked
• Advent Rising (Xbox 360)
• Aggressive Inline (PS2)
• Anti-Idle: The Game (Browser)
• Armed Police Batrider (Arcade)
• Battle Garegga (Arcade)
• Bolt (iOS)
• Bonk (Famicom/NES)
• Boderlands: Mad Moxxi's Underdome Riot (Xbox 360, PS3, PC)
• Castaways (PC)
• Code Lyoko (DS)
• Cosmic Epsilon (Famicom)
• Crash Bandicoot 3: Warped (PlayStation)
• Dave Mirra Freestyle BMX 2 (GameCube)
• Daytona USA (Sega Saturn)
• Disney's Aladdin (Sega Genesis)
• Double Dragon Advance (GBA)
• Drymouth (GBC)
• Fat Slice (Browser)
• Final Fight 2 (SNES)
• Flip (iOS)
• Gish (Mac OS X, Linux, Windows)
• Grandia (Saturn, PlayStation)
• Half-Life 2 (Xbox)
• Heli Attack 3 (PC)
• Hover Kart (Browser game)
• I'm O.K - A Murder Simulator (PC)
• In The Groove (PlayStation 2)
• The Incredibles (PC, Mac, Xbox, PS2)
• Insaniquarium (Flash)
• Jam Sessions (DS)
• Kid Klown in Night Mayor World (NES)
• Kingdom of Loathing (Browser game)
• The King of Rally (Super Famicom)
• Knuckles in Sonic 2 (Sega Genesis)
• La-Mulana (PC)
• League of Legends (PC)
• The Legend of Spyro: A New Beginning (GameCube)
• Legends of Wrestling (GameCube, Xbox, PS2)
• LittleBigPlanet 2 (PS3)
• Lucha Libre AAA: Héroes del Ring (Xbox 360, PS3)
• Manx TT Superbike (Arcade)
• Mercenaries 2 (PS3)
• MLB 10: The Show (PS3)
• Monster Madness: Battle for Suburbia (Xbox 360)
• Mortal Kombat 3 (SNES)
• Ms. Pac-Man And Galaga: Class Of 1981 (Arcade)
• MySims (Wii)
• NBA Jam 2010 (Wii, Xbox 360, PS3)
• Ninja Wars (Facebook)
• North and South (NES)
• The Orange Box (Xbox 360, PS3)
• Plants vs. Zombies (PC, iOS)
• Prince of Persia: The Two Thrones (PS2)
• Pryzm Chapter One: The Dark Unicorn (PS2)
• Quake 4 (Xbox 360)
• Quizocalypse (Xbox Live Indie Games)
• Ratchet & Clank: Up Your Arsenal (PS2)
• Resident Evil 2 (PC, Dreamcast, PlayStation)
• Resonance of Fate (Xbox 360, PS3)
• Score Rush (XBLA)
• Scott Pilgrim (XBLA, PSN)
• Secret Agent Clank (PSP)
• Smart Ball (SNES)
• Sonic Chaos (Game Gear)
• Star Ocean: Till the End of Time (PS2)
• Star Wars: Rebel Assault (PC)
• Star Wars: The Clone Wars (PS2, Xbox, Gamecube)
• Super Monkey Ball Jr. (GBA)
• Super Nova (SNES)
• Tales of Phantasia (Super Famicom, PlayStation, GBA)
• Tetris (Tengen version, NES)
• The Legend of Spyro: A New Beginning (GameCube)
• Tom and Jerry (NES)
• Tom Clancy's Rainbow Six 3 (Xbox)
• Tony Hawk's Pro Skater 2 (GBA)
• Trogdor (Flash)
• Ty the Tasmanian Tiger 2: Bush Rescue (GBA)
• Universe Sandbox (Steam)
• Viva Pinata: Party Animals (Xbox 360)
• WarioWare, Inc.: Mega Microgame$ (GBA)
• WarioWare, Inc.: Mega Party Game$ (GameCube)
• WinBack (N64)
• X-Men: Wolverine's Rage (Gameboy Color)
• Zombie Nation (NES)
• Zoo Tycoon DS (DS)

Website Easter Eggs

• Facebook
• Google Reader
• Digg
• Mint
• jQuery
• Brightkite
• Zeno.name
• Specced for Awesome
• AdventureQuest Worlds
• AIM Express
• Geek & Hype
• Cornify
• Paul Irish
• Cubeecraft
• Patrick A. Carrell Design
• Whomwah.com
• Absolute Bica
• Uncrate
• Netlog
• Logicbox.net
• MillionDollarCu.be
• Geek Stuff
• GameSpot
• Giant Bomb
• The Daily of UW
• Lifthill.com
• 9ko.fr
• Qiwi
• Video Game Obsession
• Open Ended Adventure
• Krsnsk
• RobotAcid
• satf.se
• Pixel Charge
• Full On Design
• Single Function
• Ignomanía
• Hideou.se
• Shudder
• Chromium 53
• SoundClick
• Leihu.com
• Cleard.com
• Jonsdorfer Falken
• LOG Magazine
• Damnyeah.de
• ServerHex
• After DOOMSDAY Archives
• 64media.net
• BuySellAds.com
• InterGraphicDESIGNS
• Voccine.com
• zAmazing Shop
• Hardware.no
• CloneWeb
• Eren Emre Kanal
• My Name is E
• Binärpilot
• dango design
• Kuppiya.com
• DancesportInfo.net
• Kings Of Code
• Plurk
• memento
• Panda Games
• Bandit Design
• WebNotes
• GeneralGames.ca
• Qbreis
• ThinkingLab
• Super Chick Sisters
• Micro Place
• Sean Hood
• Creative Closeup
• CSSline
• Demilane
• rworks.org
• Elliott Kember
• nikdaum.com
• Design Militia
• Shirtoid
• teddy-risation
• TrackThis
• Bobba
• Kahale
• neilskiene.com
• Battery Interactive
• Blueworld
• Front-End Design Conference