| Itouke no Urawaza DS | 2008 | nds |
| Itsudemo Dokodemo - Onita Atsushi no Seiji Quiz DS | 2007 | nds |
| Itsumo no Shokuzai de Dekichau Suteki na Sweets to Gochisou | 2007 | nds |
| J'Apprends l'Anglais CP-CM1 | 2008 | nds |
| Janosch - Das grosse Panama-Spiel | 1999 | gbc |
| Jazzpunk: Director's Cut | 2016 | ps4 |
| Jeopardy! | 1992 | genesis |
| Jeopardy! | 1988 | nes |
| Jeopardy! | 1992 | snes |
| Jeopardy! 25th Anniversary Edition | 1990 | nes |
| The Jetsons' Ways with Words | 1983 | intv |
| Jim Henson's Bear in the Big Blue House | 2002 | gbc, ps1 |
| Jim Henson's The Hoobs | 2002 | ps1 |
| Jishin DS 72-jikan | 2009 | nds |
| Josefiina Alkupolku - Englannin Kieli - Mysteeri Lontoossa | 2011 | nds |
| Josefiina Alkupolku - Matematiikka - Sumua Lukukylan ylla | 2009 | nds |
| Josefiina Alkupolku - Seikkailumaa - Unelmien peili | 2008 | nds |
| Josefin Skolhjaelp - Svenska - Kaos i Kommakoeping | 2009 | nds |
| Josefin Skolhjalp - Engelska - Mystery in London | 2010 | nds |
| Josefin Skolhjalp och Dromspegeln | 2009 | nds |
| Josefine - Magi i Eventyrland | 2009 | nds |
| Josefine Skolehjelp - Engelsk - Mystery in London | 2010 | nds |
| Josefine Skolehjelp - Laer a stave - Staving eller Kaos | 2010 | nds |
| Josefine Skolehjelp - Matematikk - Taake i Tallheimen | 2004 | nds |
| Josefine Skolehjelp - Norsk - Kaos i Kommaby | 2009 | nds |
| Josefine og Droemmespeilet | 2008 | nds |
| JumpStart - Deep Sea Escape | 2011 | nds |
| JumpStart Dino Adventure - Field Trip | 2001 | gbc |
| JumpStart Escape from Adventure Island | 2009 | wii |
| JumpStart Pet Rescue | 2009 | wii |
| Jungle School | 2011 | nds |
| Junior Brain Trainer | 2004 | nds |
| Junior Brain Trainer - Maths Edition | 2011 | nds |
| Junior Brain Trainer 2 | 2010 | nds |
| Just English | 2006 | psp |
| Just in Time Translations - Say It in 6 Languages | 2009 | nds |
| K9.5 1 - Live in Airedale | 1997 | ps1 |
| K9.5 2 - We Are the Dogs! | 1997 | ps1 |
| K9.5 3 - WebTunes | 1997 | ps1 |
| K9.5 4 - The Tail-Wag Tour | 1997 | ps1 |
| K9.5 5 - The Howlywood Premiere | 1998 | ps1 |
| Kabushiki Baibai Trainer - Kabutore! | 2006 | nds |
| Kageyama Hideo no Hanpuku Ondoku - DS Eigo - Shougaku Eigo Hisshuu Drill | 2008 | nds |
| Kageyama Hideo no IQ Teacher DS - Kangaeru Chikara to Oboeru Chikara | 2006 | nds |
| Kaibou Seirigaku DS - Touch de Hirogaru! Jintai no Kouzou to Kinou | 2011 | nds |
| Kaigo Navi DS | 2004 | nds |
| Kaite Oboeru - DoraGana | 2015 | 3ds |
| Kaite Oboeru - Doragana | 2008 | nds |
| Kakikomi Shiki - 'Hannya Shingyou' Renshuuchou DS | 2007 | nds |
| Kakko Yoku Narou - Kaku-chan Shiki - Kintore Navi | 2007 | nds |
| Kalle Kunskap - 4-7 Aar | 2004 | nds |
| Kalle Kunskap Matematik 4-8 ar | 2010 | nds |
| Kamen Rider - Sakusen File 1 | 1997 | saturn |
| Kanbayashi Shiki Nouryoku Kaihatsu Hou - Unou Kids DS | 2006 | nds |
| Kangaeru Chikara o Gun Gun Nobasu! - DS Youji no Noutore | 2008 | nds |
| Kanji Boy | 1999 | gbc |
| Kanji Boy 3 | 2003 | gbc |
| Kanji Trainer Portable | 2006 | psp |
| Kanji no Wataridori | 2006 | nds |
| Kankyou Jidai no Koushiki Kentei - Eco Kentei DS - Tokyo Shoukou Kaigisho Kanshuu | 2008 | nds |
| Kanshuu Nihon Joushiki Ryoku Kentei Kyoukai - Imasara Hito ni wa Kikenai - Otona no Joushiki Ryoku Training DS | 2006 | nds |
| Karada Support Kenkyuujo - Tounyoubyou Hen | 2008 | nds |
| Karada, Yorokobu Shokuji & Exercise - Kenkou Kentei | 2007 | nds |
| Karaoke Voetbal | 1993 | cdi |
| Karasawa Shunichi no Zettai ni Ukeru!! - Zatsugakuen DS | 2007 | nds |
| Katei de Dekiru! Chomeijin Yuumei Ryourinin no Original Recipe - Shokusai Roman | 2007 | nds |
| KazMania 1 - Trail of Gems | 1998 | ps1 |
| KazMania 2 - Chaos in KazMania | 1998 | ps1 |
| Kazoku Minna de - Nihon Shiatsu Shikai Kanshuu - Raku Raku Shiatsu Navi | 2007 | nds |
| Keiba Saishou no Housoku | 1994 | 3do |
| Kero Kero Keroppi to Origami no Tabibito | 1995 | 3do |
| Kids Learn - 2Think - A+ Edition | 2004 | nds |
| Kids Station - Basic Soft | 2002 | ps1 |
| Kids Station - Bishoujo Senshi Sailor Moon World - Chibiusa to Tanoshii Mainichi | 2001 | ps1 |
| Kids Station - Gomdori Pooh Hakseup Series - Gomdori Pooh Sinnaneun Yuagyosil | 2002 | ps1 |
| Kids Station - Kuma no Pooh-san - Mori no Kyoushitsu | 2002 | ps1 |
| Kids Station - Kuma no Pooh-san - Mori no Tomodachi | 2001 | ps1 |
| Kids Station - Mickey & Minnie no Magical Kitchen | 2002 | ps1 |
| Kids Station - Ponkickies 21 - Game no Omocha-bako | 2001 | ps1 |
| Kids Station - Soreike! Anpanman 3 - Sugoroku Anpanman | 2002 | ps1 |
| Kids on Site | 1994 | segacd |
| Kiite Hajimeru - Eigo Kaiwa Training - Kikitore | 2008 | nds |
| Kiite Oboeru Eitango - ALC no Kikutan Basic | 2009 | psp |
| Kiite Oboeru Eitango - ALC no Kikutan Entry | 2009 | psp |
| Kiite Oboeru Eitango - Alc no Kikutan Advanced | 2009 | psp |
| Kikansha Thomas - DS de Hajimeru Chiiku Gakushuu | 2004 | nds |
| Kikansha Thomas - DS de Hajimeru Kokugo Sansuu Eigo | 2007 | nds |
| Kiku! Kaku! Kotoba o Fuyasu! - Hajimete no Eigo Training - Eitore | 2007 | nds |
| Kinect Sesame Street TV | 2012 | xbox360 |
| The King of Kings - The Early Years | 1991 | nes |
| Kirihara Shoten Forest - Eigo@DS | 2008 | nds |
| Kirihara Shoten Kanshuu - Daigakusei Ryoku Kentei DS | 2008 | nds |
| Kobun Kanbun DS | 2009 | nds |
| Kodomo ni Anshin Shite Ataerareru Game Series - Sekai Meisaku Douwa - Oyako de Yomeru Game Ehon Bouken-Hen | 2013 | 3ds |
| Kodomo ni Anshin Shite Ataerareru Game Series - Sekai Meisaku Douwa - Oyako de Yomeru Game Ehon Princess-Hen | 2013 | 3ds |
| Kokoro ga Mezameru - Otoko-tachi no Nurie DS - Tamiya Box Art | 2007 | nds |
| Kokoro o Yasumeru - Otona no Nurie DS | 2006 | nds |
| Kokoro o Yasumeru - Otona no Nurie DS 2 | 2007 | nds |
| Konami Kids Playground - Alphabet Circus | 2007 | ps2 |
| Konami Kids Playground - Dinosaurs - Shapes & Colors | 2007 | ps2 |