| Sonic The Hedgehog | Arcade |
? | 1991 | developed |
| Sonic The Hedgehog 2 | Arcade |
? | 1992 | developed |
| Sonic the Hedgehog CD | Mega-CD / Sega CD |
JP | 1993-09-23 | developed |
| Sonic the Hedgehog CD | Mega-CD / Sega CD |
JP | 1993-09-23 | developed |
| Sonic the Hedgehog CD | Mega-CD / Sega CD |
JP | 1993-09-23 | developed |
| Sonic The Hedgehog 3 | Mega Drive / Genesis |
US | 1994-01 | developed |
| Sonic 3 | Mega Drive / Genesis |
EU | 1994-02 | developed |
| Sonic The Hedgehog 3 | Mega Drive / Genesis |
KR | 1994-02 | developed |
| Sonic The Hedgehog 3 | Mega Drive / Genesis |
US | 1994-02-02 | developed |
| Sonic The Hedgehog 3 Limited Edition | Mega Drive / Genesis |
JP | 1994-02 | developed |
| Sonic The Hedgehog 3 | Mega Drive / Genesis |
JP | 1994-05-27 | developed |
| Sonic & Knuckles | Mega Drive / Genesis |
US | 1994-10-18 | developed |
| Sonic & Knuckles | Mega Drive / Genesis |
WORLD | 1994-10-18 | developed |
| Sonic & Knuckles + Sonic 3 | Mega Drive / Genesis |
EU | 1994-10 | developed |
| Sonic & Knuckles + Sonic The Hedgehog 2 | Mega Drive / Genesis |
WORLD | 1994-10 | developed |
| Sonic & Knuckles + Sonic The Hedgehog 3 | Mega Drive / Genesis |
JP | 1994-10 | developed |
| Sonic & Knuckles + Sonic The Hedgehog 3 | Mega Drive / Genesis |
KR | 1994-10 | developed |
| Sonic & Knuckles + Sonic The Hedgehog 3 | Mega Drive / Genesis |
US | 1994-10 | developed |
| Knuckles' Chaotix | Sega 32X |
JP | 1995-04-21 | developed |
| Knuckles' Chaotix | Sega 32X |
US | 1995-04 | developed |
| Knuckles' Chaotix | Sega 32X |
JP | 1995-04-21 | developed |
| Knuckles' Chaotix | Sega 32X |
US | 1995-04 | developed |
| Knuckles' Chaotix | Sega 32X |
EU | 1995-05 | developed |
| Nights into Dreams | Sega Saturn |
JP | 1996-07-05 | developed |
| Nights into Dreams | Sega Saturn |
BR | 1996-07-05 | developed |
| Nights into Dreams | Sega Saturn |
KR | 1996-07-05 | developed |
| Nights into Dreams | Sega Saturn |
JP | 1996-07-05 | developed |
| Nights into Dreams | Sega Saturn |
US | 1996-08-20 | developed |
| Nights into Dreams | Sega Saturn |
US | 1996-08-20 | developed |
| Nights into Dreams | Sega Saturn |
EU | 1996-09-05 | developed |
| Christmas Nights into Dreams | Sega Saturn |
EU | 1996-11 | developed |
| Christmas Nights into Dreams | Sega Saturn |
JP | 1996-11 | developed |
| Christmas Nights into Dreams | Sega Saturn |
US | 1996-11 | developed |
| Sonic Jam | Sega Saturn |
JP | 1997-06-20 | developed |
| Sonic Jam | Sega Saturn |
US | 1997-07 | developed |
| Sonic Jam | Sega Saturn |
EU | 1998 | developed |
| Burning Rangers | Sega Saturn |
JP | 1998-02-26 | developed |
| Burning Rangers | Sega Saturn |
JP | 1998-02-26 | developed |
| Burning Rangers | Sega Saturn |
JP | 1998-02-26 | developed |
| Burning Rangers | Sega Saturn |
US | 1998-05-28 | developed |
| Burning Rangers | Sega Saturn |
EU | 1998-06-19 | developed |
| Sonic Adventure | Dreamcast |
JP | 1998-12-23 | developed |
| Samba De Amigo | Arcade |
? | 1999 | developed |
| Samba De Amigo | Arcade |
US | 1999 | developed |
| Sonic Adventure | Dreamcast |
US | 1999-09-09 | developed |
| Sonic Adventure | Dreamcast |
US | 1999-09-09 | developed |
| Sonic Adventure - Limited Edition | Dreamcast |
US | 1999-09-09 | developed |
| Sonic Adventure | Dreamcast |
EU | 1999-10-14 | developed |
| Sonic Adventure International | Dreamcast |
JP | 1999-10 | developed |
| Chu-Chu Rocket! | Dreamcast |
JP | 1999-11-11 | developed |
| Chu-Chu Rocket! | Dreamcast |
JP | 1999-11-11 | developed |
| Samba de Amigo ver. 2000 | Arcade |
JP | 2000 | developed |
| ChuChu Rocket! | Dreamcast |
US | 2000-03-07 | developed |
| Samba de Amigo | Dreamcast |
JP | 2000-04-27 | developed |
| ChuChu Rocket! | Dreamcast |
EU | 2000-05-12 | developed |
| Samba de Amigo | Dreamcast |
US | 2000-10-17 | developed |
| Sonic Adventure 2 - The Trial | Dreamcast |
EU | 2000-11 | developed |
| Sonic Adventure 2 - The Trial | Dreamcast |
US | 2000-11 | developed |
| Sonic Adventure 2 - The Trial | Dreamcast |
JP | 2000-11 | developed |
| Phantasy Star Online | Dreamcast |
JP | 2000-12-21 | developed |
| Phantasy Star Online | Dreamcast |
JP | 2000-12-21 | developed |
| Samba de Amigo | Dreamcast |
EU | 2000-12-08 | developed |
| Samba de Amigo Ver. 2000 | Dreamcast |
JP | 2000-12-14 | developed |
| Phantasy Star Online | Dreamcast |
US | 2001-01-30 | developed |
| Phantasy Star Online | Dreamcast |
EU | 2001-02-15 | developed |
| ChuChu Rocket! | Game Boy Advance |
EU | 2001-06 | developed |
| ChuChu Rocket! | Game Boy Advance |
JP | 2001-06 | developed |
| ChuChu Rocket! | Game Boy Advance |
US | 2001-06 | developed |
| Phantasy Star Online Ver. 2 | Dreamcast |
JP | 2001-06-07 | developed |
| Phantasy Star Online Ver. 2 | Dreamcast |
US | 2001-09-25 | developed |
| Minna de Puyo Puyo | Game Boy Advance |
JP | 2001-10 | developed |
| Sonic Advance | Game Boy Advance |
JP | 2001-12 | developed |
| Sonic Advance | Game Boy Advance |
EU | 2002 | developed |
| Sonic Advance | Game Boy Advance |
US | 2002 | developed |
| Puyo Pop | Game Boy Advance |
EU | 2002-02 | developed |
| Puyo Pop | Game Boy Advance |
US | 2002-02 | developed |
| Sonic Advance | Game Boy Advance |
US | 2002-02 | developed |
| Phantasy Star Online Ver. 2 | Dreamcast |
EU | 2002-03-01 | developed |
| Phantasy Star Online Episode I & II | GameCube |
JP | 2002-09-12 | developed |
| Phantasy Star Online Episode I & II - Trial Edition | GameCube |
JP | 2002-09-12 | developed |
| Phantasy Star Online Episode I & II Plus | GameCube |
JP | 2002-09 | developed |
| Phantasy Star Online Episode I & II | GameCube |
US | 2002-10-30 | developed |
| Phantasy Star Online Episode I & II Plus | GameCube |
US | 2002-10 | developed |
| Sonic Mega Collection | GameCube |
US | 2002-11-12 | developed |
| Sonic Mega Collection | GameCube |
JP | 2002-12-19 | developed |
| Puyo Pop Fever | Sega Naomi (GD-ROM) |
WORLD | 2003 | developed |
| Puyo Pop Fever | Arcade |
WORLD | 2003 | developed |
| Puyo Puyo Fever | Sega Naomi (GD-ROM) |
JP | 2003 | developed |
| Puyo Puyo Fever | Arcade |
JP | 2003 | developed |
| Puyo Puyo Fever | Arcade |
? | 2003 | developed |
| Sonic Advance 2 | Game Boy Advance |
US | 2003 | developed |
| Phantasy Star Online - Episode I & II | Xbox |
JP | 2003-01-16 | developed |
| Phantasy Star Online Episode I & II | Xbox |
JP | 2003-01-16 | developed |
| Phantasy Star Online Episode I & II | GameCube |
EU | 2003-03-07 | developed |
| Phantasy Star Online Episode I & II | GameCube |
EU | 2003-03-07 | developed |
| Sonic Mega Collection | GameCube |
EU | 2003-03-07 | developed |
| Phantasy Star Online Episode I & II | Xbox |
US | 2003-04-15 | developed |
| Phantasy Star Online Episode I & II | Xbox |
EU | 2003-05-23 | developed |
| Sonic Adventure DX | GameCube |
JP | 2003-06 | developed |
| Sonic Adventure DX - Director's Cut | GameCube |
EU | 2003-06-20 | developed |