Konjiki no Gashbell!! - Unare! Yuujou no Zakeru (Japan)
Konjiki no Gashbell!! - Unare! Yuujou no Zakeru 2 (Japan) (Rev 1)
Konjiki no Gashbell!! - Unare! Yuujou no Zakeru 2 (Japan)
Konjiki no Gashbell!! The Card Battle for GBA (Japan)
Konjiki no Gashbell!! Yuujou no Zakeru - Dream Tag Tournament (Japan)
Korokoro Puzzle - Happy Panecchu! (Japan)
Kotoba no Puzzle - Mojipittan Advance (Japan) (Virtual Console)
Kotoba no Puzzle - Mojipittan Advance (Japan)
Kouchuu Ouja Mushiking - Greatest Champion e no Michi (Japan)
Koukou Juken Advance Series Eigo Koubun Hen - 26 Units Shuuroku (Japan)
Koukou Juken Advance Series Eijukugo Hen - 650 Phrases Shuuroku (Japan)
Koukou Juken Advance Series Eitango Hen - 2000 Words Shuuroku (Japan)