Konami Code games

 Contra (NES)
 Graduis (NES)
 Gradius 2 (NES)
 Gyruss (NES)
 Kid Clown (NES)
 Life Force (NES)
 The Legend of the Mystical Ninja (Super NES)
 North and South (NES)
 NBA Give-N-Go (NES)
 Tengen Tetris (NES)
 TMNT 3: The Manhattan Project (NES)
 Top Gun: The Second Mission (NES)
 Zombie Nation (NES)

 BeatMania (GameBoy)
 Batman Returns (SNES)
 Boktai: The Sun is in Your Hand (GBA)
 Cosmic Epsilon (Famicom)
 Castlevania: Harmony of Dissonance (GBA)
 Contra: Shattered Soldier (PS2)
 Crisis Force (Family Computer)
 Deadly Arts (Nintendo 64)
 Death, Jr. (PSP)
 Death, Jr. 2: Root of Evil (PSP)
 Detana!! TwinBee (PC Engine)
 Detana TwinBee Yahho! Deluxe Pack (PS, Saturn)
 DrumMania (Arcade)
 Final Fight 2 (SNES)
 Flame of Recca: Final Burning (PS2)
 Frogger (Xbox 360)
 Frogger’s Adventures: The Rescue
 Ganbare Goemon Kirakira Douchuu: Boku ga Dancer ni Natta Wake (Super Famicom)
 Goemon: Shin Sedai Shūmei! (PS)
 Gradius (Arcade)
 Gradius Galaxies (GBA)
 Gradius Gaiden (PS1)
 Gradius III (SNES)
 Hayate the Combat Butler: Boku ga Romeo de Romeo ga Boku de (DS)
 Hellboy: The Science of Evil (PSP)
 International Superstar Soccer Deluxe (Super NES, PS)
 International Superstar Soccer 64 (N64)
 International Superstar Soccer 98 (N64)
 Konami Collector’s Series: Arcade Advanced (GBA) (Frogger, Time Pilot, Kung Fu, Rush n’ Attack, Scramble, Gyruss)
 Metal Gear Solid 2: Sons of Liberty (PS2)
 MLB Power Pros (PS2), (Wii)
 Nemesis (GameBoy)
 Mortal Kombat 3 (SNES)
 Fighter’s History (SNES)
 Operation C (GameBoy)
 Nagano Winter Olympics ‘98 (PS, N64)
 Ordyne (TurboGrapfx-16)
 Pro Evolution Soccer 2012 3D (Nintendo 3DS)
 Pop’n Twinbee (Super NES)
 Racing Fighter (GameBoy)
 Raging Fighter (GB)
 Rave Master(GC)
 REFLEC BEAT plus (iOS)
 Rocket Knight (Xbox Live Arcade, PlayStation Network, Steam)
 Silent Hill 3 (PS2)
 Silent Hill Homecoming (PS3, 360)
 Smart Ball (SNES)
 Star Wars: The Clone Wars (PS2)
 TMNT Fall of the Foot Clan (GB)
 TMNT IV: Turtles in Time (SNES)
 Twinbee: Rainbow Bell Adventure (Super NES)
 Wario Ware (GBA)
 Zone of the Enders (PS2, PS3, Xbox 360)
 Zone of the Enders: The 2nd Runner (PS2, PS3, PS4, Xbox 360, Windows)

https://dmarket.com/blog/cracking-konami-code/