- J.J. & Jeff (TG-16)
- J.R.R. Tolkien's The Lord of the Rings - Volume I (SNES)
- Jack Bros. (VB)
- Jack N' Jill DX (Switch eShop)
- Jack Nicklaus Golf (GB)
- Jackass the Game DS (DS)
- JACKPOT 777 (Wii U eShop)
- JackQuest: Tale of the Sword (Switch eShop)
- Jagged Alliance (DSiWare)
- Jake Hunter Detective Story: Ghost of the Dusk (3DS eShop)
- Jam City Rollergirls (WiiWare)
- Jam Sessions (DS)
- Jam Space: PocketStudio (DSiWare)
- Jam With the Band (DS)
- Jambo! Safari (DS)
- Jambo! Safari (Wii)
- James Bond 007 (GB)
- James Bond: 007 Legends (Wii U)
- James Noir's Hollywood Crimes (3DS)
- James Pond: Codename Robocod (3DS)
- James Pond: Codename Robocod (Switch eShop)
- James Pond: Codename Robocod (Wii U)
- Japanese Mah-jongg (Switch eShop)
- Japanese Rail Sim 3D 5 types of trains (3DS eShop)
- Japanese Rail Sim 3D Journey in Suburbs #1 (3DS eShop)
- Japanese Rail Sim 3D Journey in suburbs #1 Vol.2 (3DS eShop)
- Japanese Rail Sim 3D Journey in suburbs #1 Vol.3 (3DS eShop)
- Japanese Rail Sim 3D Journey in suburbs #1 Vol.4 (3DS eShop)
- Japanese Rail Sim 3D Journey in suburbs #2 (3DS eShop)
- Japanese Rail Sim 3D Journey to Kyoto (3DS eShop)
- Japanese Rail Sim 3D Monorail Trip to Okinawa (3DS eShop)
- Japanese Rail Sim 3D Travel of Steam (3DS eShop)
- Jazzy Billiards (DSiWare)
- JCB Pioneer: Mars (Switch eShop)
- Jeep Jamboree: Off Road Adventure (GB)
- Jelly Boy (GB)
- JellyCar 2 (DSiWare)
- JellyCar 2 (WiiWare)
- Jenga (DS)
- Jenga (Wii)
- Jeopardy! (GB)
- Jeopardy! (Switch eShop)
- Jeopardy! (Wii U)
- Jeopardy! Platinum Edition (GB)
- Jeopardy! Sports Edition (GB)
- Jeopardy! Teen Tournament (GB)
- Jet Dog (3DS eShop)
- Jet Force Gemini (N64)
- Jet Grind Radio (GBA)
- Jett Rocket (WiiWare)
- Jett Rocket II - The Wrath of Taikai (3DS eShop)
- Jett Tailfin (Wii U eShop)
- Jettomero: Hero of the Universe (Switch eShop)
- Jewel Adventures (DSiWare)
- Jewel Fever 2 (Switch eShop)
- Jewel Keepers: Easter Island (DSiWare)
- Jewel Keepers: Easter Island (WiiWare)
- Jewel Legends: Tree of Life (DSiWare)
- Jewel Master Atlantis 3D (3DS eShop)
- Jewel Master Cradle Of Egypt 2 3D (3DS)
- Jewel Master Cradle Of Rome 2 (3DS)
- Jewel Master: Cradle of Egypt 2 (DS)
- Jewel Match (DSiWare)
- Jewel Match 3 (3DS eShop)
- Jewel Quest (Wii U eShop)
- Jewel Quest 4 Heritage (3DS eShop)
- Jewel Quest 4 Heritage (DSiWare)
- Jewel Quest 5 - The Sleepless Star (DSiWare)
- Jewel Quest Mysteries 3 - The Seventh Gate (3DS)
- Jewel Quest Solitaire (DS)
- Jewel Quest: The Sapphire Dragon (3DS)
- Jewels of the Tropical Lost Island (DS)
- Jikkyou Oshaberi Parodius (SNES)
- Jillian Michaels' Fitness Ultimatum 2009 (Wii)
- Jimmy Connors Tennis (GB)
- Jimmy Neutron: Jet Fusion (GCN)
- Job Island: Hard Working People (Wii)
- Job the Leprechaun (Switch eShop)
- Job the Leprechaun (Wii U eShop)
- Joe & Mac (GB)
- Joe Dever's Lone Wolf (Switch eShop)
- Joe Jump Impossible Quest (Switch eShop)
- Joe's Diner (Wii U eShop)
- Joggernauts (Switch eShop)
- Johnny Dynamite (3DS eShop)
- Johnny Hotshot (3DS eShop)
- Johnny Impossible (3DS eShop)
- Johnny Kung Fu (3DS eShop)
- Johnny Turbo's Arcade Joe and Mac Caveman Ninja (Switch eShop)
- Johnny Turbo's Arcade: Bad Dudes (Switch eShop)
- Johnny Turbo's Arcade: Break Thru (Switch eShop)
- Johnny Turbo's Arcade: Express Raider (Switch eShop)
- Johnny Turbo's Arcade: Fighter's History (Switch eShop)
- Johnny Turbo's Arcade: Gate Of Doom (Switch eShop)
- Johnny Turbo's Arcade: Heavy Barrel (Switch eShop)
- Johnny Turbo's Arcade: Heavy Burger (Switch eShop)
- Johnny Turbo's Arcade: Joe and Mac Returns (Switch eShop)
- Johnny Turbo's Arcade: Night Slashers (Switch eShop)
- Johnny Turbo's Arcade: Nitro Ball (Switch eShop)
- Johnny Turbo's Arcade: Shoot Out (Switch eShop)
- Johnny Turbo's Arcade: Sly Spy (Switch eShop)
- Johnny Turbo's Arcade: Super Burger Time (Switch eShop)
- Johnny Turbo's Arcade: Super Real Darwin (Switch eShop)
- Johnny Turbo's Arcade: Two Crude Dudes (Switch eShop)
- Johnny Turbo's Arcade: Wizard Fire (Switch eShop)
- Johnny Turbo’s Arcade: Express Raider (Switch eShop)
- Johnny's Payday Panic (3DS eShop)
- Jolt Family Robot Racer (Switch eShop)
- Jolt Family Robot Racer (Wii U eShop)
- Jones on Fire (Wii U eShop)
- Jordan vs. Bird: One on One (GB)
- Jotun: Valhalla Edition (Switch eShop)
- Jotun: Valhalla Edition (Wii U eShop)
- Journey of a Special Average Balloon (Wii U eShop)
- Journey to Kreisia (3DS eShop)
- Ju-On: The Grudge (Wii)
- Judge Dredd (GB)
- Juicy Realm (Switch eShop)
- Julie's Sweets (Switch eShop)
- Jumanji: The Video Game (Switch)
- Jump Superstars (DS)
- Jump Trials (DSiWare)
- Jump Trials Extreme (DSiWare)
- Jump Trials Supreme (3DS eShop)
- Jumping Joe & Friends (Switch eShop)
- Jumpman (C64)
- Jungle Speed (WiiWare)
- Jungle Strike (GB)
- Jungle Z (Switch eShop)
- Junior Brain Trainer (DS)
- Junk Planet (Switch eShop)
- Jurassic Park (GB)
- Jurassic Park Part 2: The Chaos Continues (GB)
- Jurassic Pinball (Switch eShop)
- Just Dance (Wii)
- Just Dance 2 (Wii)
- Just Dance 2014 (Wii)
- Just Dance 2014 (Wii U)
- Just Dance 2015 (Wii U)
- Just Dance 2016 (Wii)
- Just Dance 2016 (Wii U)
- Just Dance 2017 (Switch)
- Just Dance 2017 (Wii U)
- Just Dance 2018 (Switch)
- Just Dance 2018 (Wii)
- Just Dance 2018 (Wii U)
- Just Dance 2019 (Switch)
- Just Dance 2019 (Wii U)
- Just Dance 2020 (Switch)
- Just Dance 2020 (Wii)
- Just Dance 3 (Wii)
- Just Dance 4 (Wii)
- Just Dance 4 (Wii U)
- Just Dance Kids 2014 (Wii)
- Just Dance Kids 2014 (Wii U)
- Just Dance: Best Of (Wii)
- Just Dance: Disney Party 2 (Wii)
- Just Dance: Disney Party 2 (Wii U)
- Just JAM (WiiWare)
- Just Shapes & Beats (Switch eShop)
- Just Sing! 80s Collection (DSiWare)
- Just Sing! Christmas Songs (DSiWare)
- Just Sing! Christmas Vol. 2 (DSiWare)
- Just Sing! Christmas Vol. 3 (DSiWare)
- Just Sing! National Anthems (DSiWare)
- Justice Chronicles (3DS eShop)
- Justice League Heroes (DS)
- JYDGE (Switch eShop)
- Jūōki (NES)