| Kero Kero 7 | JP | 2006-01 |
Bandai | Commercial |
| Kim Possible - Kimmunicator | EU | 2006-02 |
Buena Vista Games | Commercial |
| Kono Quiz Yarou!! | JP | 2006-02 |
Namco | Commercial |
| Kageyama Hideo no IQ Teacher DS - Kangaeru Chikara to Oboeru Chikara | JP | 2006-03 |
IE Institute | Commercial |
| Kanbayashi Shiki Nouryoku Kaihatsu Hou - Unou Kids DS | JP | 2006-03 |
IE Institute | Commercial |
| Kaitou Rousseau | JP | 2006-06 |
Bandai Namco Games | Commercial |
| Kanji no Wataridori | JP | 2006-06 |
Success | Commercial |
| Kodomo no Tame no Yomi Kikase - Ehon de Asobou 1-kan | JP | 2006-07 |
Starfish | Commercial |
| Kodomo no Tame no Yomi Kikase - Ehon de Asobou 2-kan | JP | 2006-07 |
Starfish | Commercial |
| Kodomo no Tame no Yomi Kikase - Ehon de Asobou 3-kan | JP | 2006-07 |
Starfish | Commercial |
| Kouchuu Ouja Mushi King - Greatest Champion e no Michi 2 | JP | 2006-07 |
Sega | Commercial |
| Kimochi yosa Rensa Puzzle - Trion Cube | JP | 2006-08 |
Namco Bandai Games America | Commercial |
| Kirarin Revolution - Kirakira Idol Audition | JP | 2006-08 |
Konami | Commercial |
| Kokoro o Yasumeru - Otona no Nurie DS | JP | 2006-08 |
Ertain | Commercial |
| Kanshuu Nihon Joushiki Ryoku Kentei Kyoukai - Imasara Hito ni wa Kikenai - Otona no Joushiki Ryoku Training DS | JP | 2006-10 |
Nintendo | Commercial |
| Kawaii Koinu DS | JP | 2006-10 |
| Commercial |
| Kira Kira Pop Princess | EU | 2006-10 |
505 Games | Commercial |
| Kodomo no Tame no Yomi Kikase - Ehon de Asobou 4-kan | JP | 2006-10 |
Starfish | Commercial |
| Kodomo no Tame no Yomi Kikase - Ehon de Asobou 5-kan | JP | 2006-10 |
Starfish | Commercial |
| Kodomo no Tame no Yomi Kikase - Ehon de Asobou 6-kan | JP | 2006-10 |
Starfish | Commercial |
| Konductra | US | 2006-10 |
O3 Entertainment | Commercial |
| KuruKuru Chameleon DS | JP | 2006-10 |
UFO Interactive Games | Commercial |
| Keiba Navi - Umanosuke | JP | 2006-11 |
Starfish | Commercial |
| Kokoro ni Shimiru - Mouhitsu de Kaku - Aida Mitsuo DS | JP | 2006-11 |
Ertain | Commercial |
| Kabushiki Baibai Trainer - Kabutore! | JP | 2006-12 |
Konami | Commercial |
| Kenkou Ouen Recipe 1000 - DS Kondate Zenshuu | JP | 2006-12 |
Nintendo | Commercial |
| Kirarin Revolution - Naa-san to Issho | JP | 2006-12 |
Konami | Commercial |
| Kirby - Squeak Squad | US | 2006-12 |
Nintendo | Commercial |