| Title |
Year |
Genre |
| O.M.G. 26 - Our Mini Games |
2007 |
Puzzle |
| Oben |
2009 |
Platform |
| Obunsha Deru-jun Chiri DS |
2007 |
Educational |
| Obunsha Deru-jun Kokugo DS |
2007 |
Educational |
| Ochaken no Daibouken - Honwaka Yumemiru Sekai Ryokou |
2007 |
Platform |
| Ochaken no Daibouken 2 - Yume Ippai no Omocha Hako |
2008 |
Breeding |
| Ochaken no Heya DS |
2006 |
Breeding |
| Ochaken no Heya DS 2 |
2007 |
Breeding |
| Ochaken no Heya DS 3 |
2008 |
Breeding |
| Ochaken no Heya DS 4 - Ochaken Land de Hotto Shiyo? |
2009 |
Breeding |
| Odenkun - Tanoshii Oden Mura |
2008 |
Arcade |
| Odoru Daisousasen The Game - Sensuikan ni Sennyuu Seyo! |
2010 |
Adventure |
| Oekaki Puzzle Battle Vol. 1 - Yuusha-Oh GaoGaiGar Version |
2005 |
Puzzle |
| Ogwangui Darin DS |
2009 |
Cards |
| Oha Star 645 - Musshees no Fushigi na Nouen - Yoshimoto Geinin to Tomodachi Net |
2011 |
Adventure |
| Ohimesama Debut |
2008 |
Adventure |
| Oide yo Doubutsu no Mori |
2005 |
Adventure |
| Oishinbo - DS Recipe Shuu |
2007 |
Software |
| Ojaru-Maru DS - Ojaru to Okeiko Aiueo |
2007 |
Educational |
| OK! Puzzle Stars |
2010 |
Puzzle |
| Okada Toshio no Itsumademo DEBU to Omounayo - DS Recording Diet |
2008 |
Educational |
| Okaeri! Chibi-Robo! Happy Richie Oosouji |
2009 |
Adventure |
| Okamiden - Chisaki Taiyou |
2010 |
Adventure |
| Okamiden |
2011 |
Adventure |
| Oktoberfest - Das Offizielle Spiel zur Wiesn |
2009 |
Arcade |
| Oktoberfest - The Official Game |
2009 |
Arcade |
| One Piece - Gear Spirit |
2007 |
Fighting |
| One Piece - Gigant Battle 2 - Shinsekai |
2011 |
Fighting |
| One Piece - Gigant Battle! |
2011 |
Fighting |
| Onegai My Melody - Yume no Kuni no Daibouken |
2005 |
Arcade |
| Oni Zero - Sengoku Ransei Hyakkaryouran |
2007 |
RPG |
| Onsei Kanjou Sokuteiki - Kokoro Scan |
2007 |
Educational |
| Ontama - Onpu-tou Hen |
2007 |
Music / Dance |
| Ontamarama |
2007 |
Music / Dance |
| Ookami to Koushinryou - Boku to Horo no Ichinen |
2008 |
Adventure |
| Ookami to Koushinryou - Umiowataru Kaze |
2009 |
Adventure |
| Ookiku Furikabutte - Honto no Ace ni Nareru kamo |
2007 |
Adventure |
| Open Season - Boog & Elliot a Caccia di Amici |
2006 |
Platform |
| Open Season |
2006 |
Platform |
| Operation - Vietnam |
2007 |
Action |
| Orcs & Elves |
2007 |
Action |
| Ore ga Omae o Mamoru |
2009 |
Action |
| Ore no Sentouki |
2006 |
Aerial fighting |
| Ore-Sama Kingdom - Koi no Manga mo Debut o Mokushise! Doki Doki Love Lesson |
2011 |
Adventure |
| Orient Quest |
2011 |
Puzzle |
| Original Frisbee Disc Sports - Ultimate & Golf |
2007 |
Sports |
| Original Rummikub, The - Brings People Together |
2010 |
Puzzle |
| Original Story from Fairy Tail - Gekitotsu! Kardia Daiseidou |
2011 |
Fighting |
| Orla Frosnapper |
2011 |
Board game |
| Osawari Tantei Ozawa Rina - Season 2 1/2 - Rina wa Mita! Iya, Mite nai |
2009 |
Adventure |
