| Sonic Mega Collection Plus | PlayStation 2 |
EU | 2004-11 | published |
| Sonic Mega Collection Plus | PlayStation 2 |
AU | 2004-11 | published |
| Sonic Mega Collection Plus | PlayStation 2 |
JP | 2004-11 | published |
| Sonic Mega Collection Plus | PlayStation 2 |
KR | 2004-11 | published |
| Sonic Mega Collection Plus | PlayStation 2 |
US | 2004-11 | published |
| Sonic Mega Collection Plus | PlayStation 2 |
US | 2004-11 | published |
| Sonic Mega Collection Plus | Xbox |
WORLD | 2004-11-02 | published |
| Sonic Mega Collection Plus | Xbox |
WORLD | 2004-11-02 | published |
| Worms Forts - Under Siege | Xbox |
EU | 2004-11-19 | published |
| Kimi no Tame Nara Shineru | Nintendo DS |
JP | 2004-12 | published |
| Puyo Pop Fever | PlayStation Portable |
EU | 2004-12 | published |
| Puyo Puyo Fever | Nintendo DS |
JP | 2004-12 | published |
| Puyo Puyo Fever | PlayStation Portable |
JP | 2004-12-24 | published |
| The Typing of the Dead - Zombie Panic | PlayStation 2 |
JP | 2004-12 | published, developed |
| The Typing of the Dead - Zombie Panic | PlayStation 2 |
JP | 2004-12 | published, developed |
| 2 Games in 1 - Columns Crown + ChuChu Rocket! | Game Boy Advance |
EU | 2005 | developed |
| Bingo Parade | Arcade |
? | 2005 | published |
| Derby Owners Club World Edition EX | Arcade |
? | 2005 | published |
| Dragon Treasure 3 | Arcade |
? | 2005 | published |
| Guilty Gear XX Slash - The Midnight Carnival | Sega Naomi (GD-ROM) |
JP | 2005 | published |
| Mushiking The King Of Beetles - Mushiking II / III / III+ | Arcade |
WORLD | 2005 | published, developed |
| Mushiking The King Of Beetles - Mushiking II / III / III+ | Arcade |
KR | 2005 | published, developed |
| Mushiking The King Of Beetles 2005 First | Arcade |
JP | 2005 | published, developed |
| Puyo Pop Fever | Game Boy Advance |
EU | 2005 | published |
| Sega Club Golf 2006 Next Tours | Arcade |
? | 2005 | published, developed |
| Sega Network Taisen Mahjong MJ 2 | Arcade |
? | 2005 | published |
| Sega Network Taisen Mahjong MJ 3 Firmware Update | Arcade |
? | 2005 | published |
| Standard Daisenryaku - Ushinawareta Shouri | PlayStation 2 |
JP | 2005 | published |
| Super Monkey Ball - Touch & Roll | Nintendo DS |
US | 2005 | published, developed |
| SystemSP Factory Check Server | Arcade |
? | 2005 | published |
| The House of the Dead 4 | Arcade |
? | 2005 | published |
| The Key Of Avalon 2.5 - War of the Key | Arcade |
? | 2005 | published |
| Virtua Fighter 5 | Arcade |
? | 2005 | published |
| World Club Champion Football European Clubs 2004-2005 | Arcade |
AS | 2005 | published |
| World Club Champion Football European Clubs 2004-2005 Ver.1.1 | Arcade |
? | 2005 | published |
| World Club Champion Football European Clubs 2004-2005 Ver.1.1 | Arcade |
JP | 2005 | published |
| World Club Champion Football European Clubs 2004-2005 Ver.3.22 | Arcade |
? | 2005 | published |
| ESPN NHL 2K5 | Xbox |
EU | 2005-01-28 | published |
| Juuouki - Project Altered Beast | PlayStation 2 |
JP | 2005-01 | published |
| OutRun 2 | Xbox |
JP | 2005-01-25 | published |
| Suwanggi - Project Altered Beast | PlayStation 2 |
KR | 2005-01 | published |
| Astro Boy | PlayStation 2 |
EU | 2005-02 | published |
| Astro Boy - Omega Factor | Game Boy Advance |
EU | 2005-02 | developed |
| Chaos Field Expanded | GameCube |
JP | 2005-02 | published |
| Code of the Samurai | PlayStation 2 |
EU | 2005-02 | published |
| ESPN NFL 2K5 | Xbox |
EU | 2005-02-04 | published |
| Jissen Pachi-Slot Hisshouhou! Hokuto no Ken Plus | PlayStation 2 |
JP | 2005-02 | developed |
| Sakura Taisen 3 - Paris wa Moeteiru ka | PlayStation 2 |
JP | 2005-02 | published, developed |
| Dinosaur King | Arcade |
US | 2005-03 | published, developed |
| Iron Phoenix | Xbox |
US | 2005-03-25 | published |
| Project Rub | Nintendo DS |
EU | 2005-03 | published |
| Sega Ages 2500 Series Vol. 17 - Phantasy Star Generation-2 | PlayStation 2 |
JP | 2005-03 | published, developed |
| Shining Force Neo | PlayStation 2 |
JP | 2005-03 | published |
| Shining Tears | PlayStation 2 |
US | 2005-03 | published |
| Spikeout - Battle Street | Xbox |
JP | 2005-03-24 | published |
| Spikeout - Battle Street | Xbox |
US | 2005-03-29 | published |
| Super Monkey Ball Deluxe | PlayStation 2 |
JP | 2005-03 | published |
| Super Monkey Ball Deluxe | PlayStation 2 |
US | 2005-03 | published |
| Super Monkey Ball Deluxe | Xbox |
JP | 2005-03-24 | published |
| Super Monkey Ball Deluxe | Xbox |
US | 2005-03-15 | published |
| The Rumble Fish | PlayStation 2 |
JP | 2005-03 | published |
| Worms 3D | Xbox |
US | 2005-03-01 | published |
| Worms Forts - Under Siege | Xbox |
US | 2005-03-15 | published |
| Spikeout - Battle Street | Xbox |
EU | 2005-04-22 | published |
| The Tower SP | Game Boy Advance |
JP | 2005-04-28 | published |
| Jissen Pachi-Slot Hisshouhou! DS - Hokuto no Ken | Nintendo DS |
JP | 2005-06 | published, developed |
| Kouchuu Ouja Mushiking - Greatest Champion e no Michi | Game Boy Advance |
JP | 2005-06 | published |
| Bleach Advance - Kurenai ni Somaru Soul Society | Game Boy Advance |
JP | 2005-07 | published |
| Jissen Pachi-Slot Hisshouhou! Onimusha 3 | PlayStation 2 |
JP | 2005-07 | published |
| Sakura Taisen V - Saraba Itoshiki Hito yo | PlayStation 2 |
JP | 2005-07 | published, developed |
| Sakura Taisen V - Saraba Itoshiki Hito yo | PlayStation 2 |
JP | 2005-07 | published, developed |
| Sakura Wars - So Long, My Love | PlayStation 2 |
US | 2005-07 | published, developed |
| Super Monkey Ball Deluxe | PlayStation 2 |
KR | 2005-07 | published |
| Sega Ages 2500 Series Vol. 18 - Dragon Force | PlayStation 2 |
JP | 2005-08 | published, developed |
| Sega Ages 2500 Series Vol. 19 - Fighting Vipers | PlayStation 2 |
JP | 2005-08 | published, developed |
| Sonic Gems Collection | PlayStation 2 |
EU | 2005-08 | published |
| Sonic Gems Collection | PlayStation 2 |
AU | 2005-08 | published |
| Sonic Gems Collection | PlayStation 2 |
JP | 2005-08 | published |
| Sonic Gems Collection | PlayStation 2 |
KR | 2005-08 | published |
| Super Monkey Ball Deluxe | Xbox |
EU | 2005-08-26 | published |
| Guilty Gear XX Reload - The Midnight Carnival | PlayStation Portable |
JP | 2005-09 | published |
| Guilty Gear XX Reload - The Midnight Carnival | PlayStation Portable |
KR | 2005-09 | published |
| Super Monkey Ball Deluxe | PlayStation 2 |
EU | 2005-09 | published |
| Akachan wa Doko kara Kuru no | Nintendo DS |
JP | 2005-10 | published |
| Brain Trainer Portable | PlayStation Portable |
JP | 2005-10 | published, developed |
| Gunstar Future Heroes | Game Boy Advance |
EU | 2005-10 | published |
| Gunstar Super Heroes | Game Boy Advance |
JP | 2005-10 | published |
| Gunstar Super Heroes | Game Boy Advance |
US | 2005-10 | published |
| Killzone | PlayStation 2 |
JP | 2005-10 | published |
| Power Smash - New Generation | PlayStation Portable |
JP | 2005-10 | published |
| Power Smash - New Generation | PlayStation Portable |
AS | 2005-10 | published |
| Sega Ages 2500 Series Vol. 20 - Space Harrier II - Space Harrier Complete Collection | PlayStation 2 |
JP | 2005-10 | published, developed |
| Sega Ages 2500 Series Vol. 21 - SDI & Quartet - Sega System 16 Collection | PlayStation 2 |
JP | 2005-10 | published, developed |
| Shining Force Neo | PlayStation 2 |
US | 2005-10 | published |
| Spartan - Kodai Greece Eiyuuden | PlayStation 2 |
JP | 2005-10 | published |
| Spartan - Total Warrior | PlayStation 2 |
EU | 2005-10 | published |
| Spartan - Total Warrior | PlayStation 2 |
AU | 2005-10 | published |
| Spartan - Total Warrior | PlayStation 2 |
US | 2005-10 | published |
| Spartan - Total Warrior | PlayStation 2 |
EU | 2005-10 | published |
| Spartan - Total Warrior | PlayStation 2 |
AU | 2005-10 | published |