Game Boy Advance
GBA 1 450 indexed games • O : 20
O Hana Okusan Ninarou!
Ochaken No Heya
Oddworld: Munch's Oddysee
Ohanaya-san Monogatari
Ojaru Maru: Gekkocho Tour de Ojaru
Okaitoku Series 5: Puzzle & Tantei Collection
Okuman Chouja Game
One Piece: Dragon Dream!
One Piece: Going Baseball - Kaizoku Yakyuu
Onimusha Tactics
Operation Armored Liberty
Orbital
Oriental Blue: Ao no Tengai
Oshaberi Inco Club
Oshare Princess
Oshare Princess 2 And Doubutsu Kyaranabi
Oshare Princess 3
Oshare Wanko
Oui-Oui : Une Journée au Pays des Jouets
Ozzy & Drix