Kanshuu Nihon Joushiki Ryoku Kentei Kyoukai – Imasara Hito ni wa Kikenai – Otona no Joushiki Ryoku Training DS (Japan)

Kurikuri DS – Otasuke Island (Japan)

Kirihara Shoten Forest – Eigo@DS (Japan)

Kodomo no Tame no Yomi Kikase – Ehon de Asobou 1-kan (Japan)

Konchuu Wars (Japan)

Kokoro ga Uruou – Birei Aquarium DS – Tetra, Guppy, Angelfish (Japan)

Kekkaishi – Karasumori Ayakashi Kidan (Japan)

Kouenji Joshi Soccer 2 – Koi wa Nebagiba Kouenji (Japan)

Keltis – Das Spiel von Reiner Knizia (Germany)

Kyouryuu Ikusei Battle RPG – Kyouryuu Monster (Japan)

Kaitou Rousseau (Japan)

Kenshuui Tendo Dokuta (Japan)

Koukou Yakyuu-dou DS (Japan)

Kurupoto – Cool Cool Stars (USA)

Keiba Navi – Umanosuke (Japan)

Kidou Gekidan Haro Ichiza – Gundam Mahjong +Z – Sarani Dekiru You ni Natta Na! (Japan)

Kiku! Kaku! Kotoba o Fuyasu! – Hajimete no Eigo Training – Eitore (Japan)

Kanji no Wataridori (Japan)

Katekyoo Hitman Reborn! DS – Ore ga Boss! – Saikyou Family Taisen (Japan) (NDSi Enhanced)

Kobun Kanbun DS (Japan)

Kageyama Hideo no IQ Teacher DS – Kangaeru Chikara to Oboeru Chikara (Japan)

Kodomo no Tame no Yomi Kikase – Ehon de Asobou 4-kan (Japan)

Kakikomi Shiki – ‘Hannya Shingyou’ Renshuuchou DS (Japan)

Keiji J.B. Harold no Jikenbo – Murder Club (Japan)