Total: 19,227
Onsei Kanjou Sokuteiki - Kokoro Scan (Japan)
Oni Zero - Sengoku Ranse Hyakka Ryouran (Japan)
Onegai My Melody - Yume no Kuni no Daibouken (Japan)
One Piece - Gigant Battle! (Japan)
One Piece - Gear Spirit (Korea)
One Piece - Gear Spirit (Japan)
OMG 26 - Our Mini Games (USA)
Oktoberfest - The Official Game (Europe) (En,Fr,De,Es,It)
Okaeri! Chibi-Robo! - Happy Rich Oosouji! (Japan)
Okada Toshio no Itsumademo Debu to Omounayo - DS de Recording Diet (Japan)
OK! - First for Celebrity News - Puzzle Stars (Europe)
Ojaru-Maru DS - Ojaru to Okeiko Aiueo (Japan)
Oishinbo - DS Recipe Shuu (Japan)
Oishiku Kiwameru Shokutsuu DS - Otona no Shuumatsu Henshuubu Gensen no Osusume Omise Jouhou Iri (Japan)
Oide yo Doubutsu no Mori (Japan) (Rev 1)
Oide yo Doubutsu no Mori (Japan)
Ohimesama Debut (Japan)
Oheya o Kazarou - Koinu no Heya (Japan)
Ogwangui Darin DS (Korea)
Oekaki Puzzle Battle! - Yuusha Ou GaoGaiGar Hen (Japan)
