Oto o Tsunagou! Gunpey-Rebirth (Japan)

Oshare Princess – Oshare ni Koishite 2 (Japan)

Ookami Den (USA)

One Piece – Gigant Battle! (France)

Open Season (Europe) (En,Es,It,Nl)

Oheya o Kazarou – Koinu no Heya (Japan)

Ore ga Omae o Mamoru (Japan)

Oide yo Doubutsu no Mori (Japan)

Ontamarama (USA)

Overlord Minions (USA) (En,Fr,Es)

Ochaken no Heya DS 3 (Japan) (Rev 1)

One Piece – Gigant Battle! (Germany)

Ochaken no Heya DS 4 (Japan)

Ore no Sentouki (Japan)

Obunsha Deru-jun – Rika DS (Japan)

Oshare na Koinu DS (Japan)

Ochaken no Heya DS (Japan)

Ohimesama Debut (Japan)

Operation – Vietnam (USA)

Overlord Minions (Europe) (En,Fr,De,Es,It)

Original Rummikub, The – Brings People Together (Europe) (En,Fr,De,Es,It,Nl) (Games Factory Online)

Onegai My Melody – Yume no Kuni no Daibouken (Japan)

Orcs & Elves (Europe) (En,Fr,De,Es,It)

Over the Hedge (Europe)