| Year | Event | Japan | America | Europe |
| 1990 (Heisei 2) | June 7th-10th - '90 Tokyo Toy Show [JP] | |||
| 1991 (Heisei 3) | January 10th-13th - 1991 Winter CES [US] March 24th-25th - CSG Show Spring 1991 [JP] April 14th-16th - ECTS 1991 [UK] June 1st-4th - 1991 Summer CES [US] June 6th-9th - '91 Tokyo Toy Show [JP] |
Sonic Eraser released on the Mega Drive. Waku Waku Sonic Patrol Car released to arcades. May 31st - Sega and IBM releases the TeraDrive. May 31st - Puzzle Construction released on the TeraDrive. July 26th - Sonic the Hedgehog released on the Mega Drive. December 12th - Sega releases the Mega-CD. December 28th - Sonic the Hedgehog released on the Game Gear. December 31st - UFO SegaSonic released to arcades. |
Sonic the Hedgehog LCD Wrist Game released on.. well, Tiger LCD. June 23rd - Sonic the Hedgehog released on the Genesis. October 25th - Sonic the Hedgehog released on the Master System. December - Sonic the Hedgehog released on the Game Gear. |
Sega releases the Master System II. June 24th - Sonic the Hedgehog (16-bit) released on the Mega Drive. June 29th - Sega releases the Game Gear. October 25th - Sonic the Hedgehog (8-bit) released on the Master System. December - Sonic the Hedgehog (8-bit) released on the Game Gear. |
| 1992 (Heisei 4) | January 9th-13th - 1992 Winter CES [US] May 28th-31st - 1992 Summer CES [US] June 4th-7th - '92 Tokyo Toy Show [JP] November 5th-8th - The Future Entertainment Show [UK] December 6th - Yuusei Sega World [JP] |
SegaSonic the Hedgehog released on LCD. April 1st - Victor releases the Wondermega. November 21st - Sonic the Hedgehog 2 released for the Mega Drive and Game Gear. |
Sonic the Hedgehog released on Tiger LCD. November 11th - Sega releases the Sega CD. November 17th - Sonic the Hedgehog 2 released on the Game Gear. November 24th - Sonic the Hedgehog 2 released on the Genesis. |
Sonic the Hedgehog (LCD) released on Tiger LCD. Sonic the Hedgehog LCD Wrist Game released on Tiger LCD. October 16th - Sonic the Hedgehog 2 (8-bit) released on the Master System. October 29th - Sonic the Hedgehog 2 (8-bit) released on the Game Gear. November 24th - Sonic the Hedgehog 2 (16-bit) released on the Mega Drive. |
| 1993 (Heisei 5) | January 7th-10th - 1993 Winter CES [US] June 3rd-6th - '93 Tokyo Toy Show [JP] June 3rd-6th - 1993 Summer CES [US] August 26th-28th - 31st Amusement Machine Show [JP] |
Pioneer releases the Sega PAC for the Pioneer LaserActive. April 23rd - Sega releases the Mega Drive 2 and the Mega-CD 2. April 25th - SegaSonic Cosmo Fighter and SegaSonic Popcorn Shop released to arcades. June - SegaSonic the Hedgehog released to arcades. June 26th - Sega releases the Kids Computer Pico. September 23rd - Sonic the Hedgehog CD released on the Mega-CD. November 19th - Sonic Chaos released on the Game Gear. December 10th - Sonic Spinball released on the Mega Drive. |
Sonic the Hedgehog 2 released on Tiger LCD. Sonic the Hedgehog (redemption game) released to arcades. Sega releases the Genesis 2 and Sega CD 2. Pioneer releases the Sega PAC for the Pioneer LaserActive. September - SegaSonic the Hedgehog released to arcades. September 6th - Adventures of Sonic the Hedgehog begins airing. September 18th - Sonic the Hedgehog (SatAM) begins airing. November - Dr. Robotnik's Mean Bean Machine released on the Genesis. November 23rd - Sonic the Hedgehog CD released on the Sega CD. November 23rd - Sonic Spinball released on the Genesis. November 23rd - Sonic Chaos released on the Game Gear. December - Dr. Robotnik's Mean Bean Machine released on the Game Gear. |
Sonic the Hedgehog 2 (LCD) released on Tiger LCD. Sega releases the Mega Drive II and Mega-CD II. April 2nd - Sega releases the Mega-CD. September - SegaSonic the Hedgehog released in arcades. October - Sonic the Hedgehog CD released on the Mega-CD. October 25th - Sonic Chaos released on the Master System. November - Sonic Chaos released on the Game Gear. November 7th - Adventures of Sonic the Hedgehog begins airing. November 26th - Sonic Spinball (16-bit) released on the Mega Drive. December - Dr. Robotnik's Mean Bean Machine (16-bit) released on the Mega Drive. |
| 1994 (Heisei 6) | January 6th-9th - 1994 Winter CES [US] March 2nd-3rd - AOU 1994 [JP] June 2nd - Sega Gamer's Day 1994 [US] June 2nd-5th - '94 Tokyo Toy Show [JP] June 23rd-25th - 1994 Summer CES [US] September 4th-6th - ECTS Autumn 1994 [UK] September 21st-23rd - 32nd Amusement Machine Show [JP] |
Sonic's Space Tours released to arcades. Sega releases the Multi-Mega. March 18th - Sonic Drift released on the Game Gear. May 27th - Sonic the Hedgehog 3 released on the Mega Drive. August - Sonic the Hedgehog's Gameworld released on the Pico. October 18th - Sonic & Knuckles released on the Mega Drive, unlocking Knuckles in Sonic the Hedgehog 2, Sonic the Hedgehog 3 & Knuckles, and Blue Sphere. November 11th - Sonic Triple Trouble released on the Game Gear. November 22nd - Sega releases the Saturn. November 22nd - Victor releases the V-Saturn. December 3rd - Sega releases the Super 32X. |
Amazing Sonic released on Tiger LCD. Sega releases the Pico. Sonic Spinball and Sonic the Hedgehog 3 released on Tiger LCD. JVC releases the X'Eye. February 2nd - Sonic the Hedgehog 3 released on the Genesis. April - Sega releases the Genesis CDX. September - Sonic Spinball released on the Game Gear. October 4th - Tails and the Music Maker released on the Pico. October 18th - Sonic & Knuckles released on the Genesis, unlocking Knuckles in Sonic the Hedgehog 2, Sonic the Hedgehog 3 & Knuckles, and Blue Sphere. November - Sonic Triple Trouble released on the Game Gear. November - Wacky Worlds Creativity Studio released on the Genesis. November 21st - Sega releases the Genesis 32X. |
Toyland Tours opens. January - Dr. Robotnik's Mean Bean Machine (8-bit) released on the Game Gear. February 24th - Sonic the Hedgehog 3 releases on the Mega Drive. April - Sega releases the Multi-Mega. July 26th - Dr. Robotnik's Mean Bean Machine (8-bit) released on the Master System. September - Sega releases the Pico. September - Sonic Spinball (8-bit) released on the Game Gear. October 16th - Sonic the Hedgehog (SatAM) begins airing. October 18th - Sonic & Knuckles released on the Mega Drive, unlocking Knuckles in Sonic the Hedgehog 2, Sonic the Hedgehog 3 & Knuckles, and Blue Sphere. November - Sonic Triple Trouble released on the Game Gear. December 4th - Sega releases the Mega Drive 32X. |
| 1995 (Heisei 7) | January 6th-9th - 1995 CES [US] March 31st-April 2nd - Play Box '95 [PL] May 11th-13th - E3 1995 [US] |
March 17th - Sonic Drift 2 released on the Game Gear. April 1st - Hitachi releases the Hi-Saturn. April 21st - Chaotix released on the Super 32X. April 28th - Tails' Skypatrol released on the Game Gear. September 22nd - Tails Adventures released on the Game Gear. November 17th - Sonic Labyrinth released on the Game Gear. December 5th - Tails and the Music Maker released on the Pico. |
March - Knuckles' Chaotix released on the Genesis 32X. May 11th - Sega releases the Saturn. October - Sega releases the Nomad. November - Sonic Drift 2, Sonic Labyrinth, and Tails Adventure released on the Game Gear. |
Mega 6 Volume 3 released on the Mega Drive. January 25th - Sonic Spinball (8-bit) released on the Master System. April - Sonic Drift Racing released on the Game Gear. June - Knuckles' Chaotix released on the Mega Drive 32X. July - Sonic Compilation released on the Mega Drive. July 8th - Sega releases the Saturn. September - Tails Adventure released on the Game Gear. October - Sonic 2 in 1 released on the Game Gear. October - Sonic Labyrinth released on the Game Gear. December 5th - Tails and the Music Maker released on the Pico. |
| 1996 (Heisei 8) | Sega Gamer's Day 1996 [US] May 16th-18th - E3 1996 [US] September 8th-10th - ECTS Autumn 1996 [UK] |
January 26th - Sonic the Hedgehog: Welcome to Eggmanland released. March 22nd - Sonic the Hedgehog: Sonic VS Metal Sonic!! released. May - Sonic the Fighters released to arcades. August 9th - Sonic the Hedgehog CD and Sonic the Hedgehog The Screen Saver released on Windows. December 13th - G Sonic released on the Game Gear. |
6-Pak released on the Genesis. Sega Family Fun Pak released on Windows. July - Sonic Championship released to arcades. September 26th - Sonic the Hedgehog CD released on Windows. October 18th - Sonic's Schoolhouse released on Windows. October 29th - Sonic the Hedgehog's Gameworld released on the Pico. November 9th - Sonic 3D Blast released on the Genesis. November 21st - Sonic 3D Blast released for the Saturn. December 12th - Sonic Blast released on the Game Gear. |
August - Sonic Championship released in arcades. October 3rd - Sonic the Hedgehog CD released on Windows. November - Sonic Blast released on the Game Gear. November 14th - Sonic 3D: Flickies' Island released on the Mega Drive. |
| 1997 (Heisei 9) | Sega Gamer's Day 1997 [US] April 4th-6th - Tokyo Game Show '97 Spring [JP] June 19th-21st - E3 1997 [US] September 5th-7th - Tokyo Game Show '97 Autumn [JP] September 7th-9th - ECTS 1997 [UK] November 16th - Sonic's 6th Birthday Celebration [UK] |
Sonic's Bonus Game released. February 14th - Sonic & Knuckles Collection released on Windows. June 20th - Sonic Jam released on the Saturn. December 4th - Sonic R released for the Saturn. |
Sonic's Bonus Game released. Sonic 3D Blast released on Tiger LCD. March 14th - Sonic & Knuckles Collection released on Windows. April 24th - Sonic Classics released on the Genesis. July 31st - Sonic Jam released on the Saturn. September 25th - Sonic 3D Blast released on Windows. November 18th - Sonic R released for the Saturn. |
Sonic the Hedgehog AWP game appears. Sonic's Bonus Game released. February 13th - Sonic 3D: Flickies' Island released on the Saturn. March 20th - Sonic & Knuckles Collection released on Windows. August - Sonic Jam released on the Saturn. September 30th - Sonic 3D: Flickies' Island released on Windows. November 11th - Sonic R released on the Saturn. |
| 1998 (Heisei 10) | May 21st - Sega New Challenge Conference [JP] May 28th-30th - E3 1998 [US] August 22nd - Sonic Adventure Production Presentation [JP] September 6th-8th - ECTS 1998 [UK] September 30th-October 3rd - World PC Expo 98 [JP] October 6th - Sega New Challenge Conference II [JP] October 9th-11th - Tokyo Game Show '98 Autumn [JP] November 5th - Sega Gamer's Day 1998 [US] November 16th-20th - COMDEX Fall 1998 [US] |
November 27th - Sega releases the Dreamcast. December 11th - Sonic R released on Windows. December 23rd - Sonic Adventure released on the Dreamcast. |
Sonic and Sonic R released on Tiger LCD. Majesco releases the Genesis 3. July 10th - Sonic Jam released for the Game.com. November 11th - Sonic R released on Windows. |
November - Sonic R released on Windows. |
| 1999 (Heisei 11) | March 19th-21st - Tokyo Game Show '99 Spring [JP] May 13th-15th - E3 1999 [US] June 12th-13th - 10th Next Generation World Hobby Fair [JP] September 17th-19th - Tokyo Game Show '99 Autumn [JP] |
Sonic's Space Tours re-released to arcades. October 14th - Sonic 3D: Flickies' Island released on the Saturn. October 14th - Sonic Adventure International released on the Dreamcast. |
Sega Puzzle Pack, Sonic & Garfield Pack, and Sonic Speed Pack! released on Windows. July 15th - Sonic Adventure: Limited Edition released on the Dreamcast. August 30th - Sonic Underground begins airing. September 7th - Sonic the Hedgehog (OVA) released. September 9th - Sega releases the Dreamcast. September 9th - Sonic Adventure released on the Dreamcast. December 4th - Sonic Pocket Adventure released on the Neo Geo Pocket Color. |
May 2nd - Sonic Underground begins airing. October 14th - Sega releases the Dreamcast. October 14th - Sonic Adventure is released on the Dreamcast. November 1st - Sonic the Hedgehog (OVA) released. |
| 2000 (Heisei 12) | May 11th-13th - E3 2000 [US] September 3rd - Dreamcast Premiere [UK] September 9th-12th - SAGE 2000 December - Sega Gamer's Day 2000 [US] |
May 25th - Sonic Pocket Adventure released on the Neo Geo Pocket Color. June 23rd - Sega Archives from USA Vol. 1 released on Windows. July 14th - Sega Archives from USA Vol. 2 released on Windows. September 22nd - Sega Archives from USA Vol. 3 released on Windows. December 21st - Sonic Shuffle released on the Dreamcast. |
Sonic Underground and Sonic Adventure released on Tiger LCD. Sega Smash Pack 2 and Sonic Action Pack released on Windows. February 18th - Sega Smash Pack released on Windows. March 13th - Twin Pack: Sega Smash Pack & Sega Smash Pack 2 released on Windows. November 14th - Sonic Shuffle released on the Dreamcast. |
Arcade Collection released on Windows. February 25th - Sonic Pocket Adventure released on the Neo Geo Pocket Colour. |
| 2001 (Heisei 13) | March 9th-12th - SAGE Spring 2001 April 14th-15th - GameJam in Zepp Tokyo [JP] May 17th-19th - E3 2001 [US] June 23rd-24th - 14th Next Generation World Hobby Fair [JP] June 23rd-24th - Sonic Birthday Party [JP] August 24th-25th - Nintendo Space World [JP] September 9th-12th - SAGE Autumn 2001 October 12th - Sega Consumer Conference 2001 [JP] October 12th-14th - Tokyo Game Show 2001 Autumn [JP] December 15th - LOVE 2001 Winter begins [JP] |
June 18th - Sonic the Hedgehog (2001) released on Sonic Cafe. June 23rd - Sonic Adventure 2 released on the Dreamcast. June 23rd - Sonic the Hedgehog Birthday Pack released on the Dreamcast. December 20th - Sonic Advance released on the Game Boy Advance. December 20th - Sonic Tennis released on Sonic Cafe. December 20th - Sonic Adventure 2: Battle released on the GameCube. |
Sonic Head On, Sonic J, Sonic Logic, and Sonic's Bomb Squad released on mobile phones. Sonic Action 4 Pack released on Windows. January 30th - Sega Smash Pack Volume 1 released on the Dreamcast. June 23rd - Sonic Adventure 2 released on the Dreamcast. |
Sonic Head On, Sonic J, Sonic Logic, and Sonic's Bomb Squad released on mobile phones. March 9th - Sonic Shuffle released on the Dreamcast. June 23rd - Sonic Adventure 2 released on the Dreamcast. |
| 2002 (Heisei 14) | January 3rd - LOVE 2001 Winter ends [JP] January 20th - 15th Osaka Next Generation World Hobby Fair [JP] January 26th-27th - 15th Tokyo Next Generation World Hobby Fair [JP] February 3rd - 15th Nagoya Next Generation World Hobby Fair [JP] February 10th - 15th Fukuoka Next Generation World Hobby Fair [JP] March 9th-12th - SAGE Spring 2002 March 30th-31st - GameJam2 in Tokyo International Forum: Sega Spring Collection [JP] July 13th-14th - 16th Next Generation World Hobby Fair [JP] August 4th - Sonic Party 2002 Summer Festival [JP] August 25th - Let's go to Sega during summer vacation. [JP] September 9th-12th - SAGE Autumn 2002 September 20th-22nd - Tokyo Game Show 2002 [JP] October 12th-14th - Toys "R" Us Toy Festa 2002 in Toshimaen [JP] November 23rd - Sega Dream World [JP] |
January 28th - Sonic Golf released on Sonic Cafe. February 18th - Speed released on Sonic Cafe. March 25th - Sonic Fishing released on Sonic Cafe. April 16th - Sonic Billiards released on Sonic Cafe. May 22nd - Nakayoshi Chao! released on Sonic Cafe. July 22nd - Sonic Bowling released on Sonic Cafe. July 28th - Sonic Racing Kart released on i-mode phones. September 9th - Sonic Golf C-Mode Cup (first event) released on Sonic Cafe. September 20th - Eggman no Kazuate Panic! released on Sonic Cafe. October 13th - Sonic Spinball (Life Savers) released. October 17th - Sonic no Jirai Sagashi Game released on Sonic Cafe. November 18th - Sonic Racing Shift Up released on Sonic Cafe. November 25th - Sonic Golf C-Mode Cup (second event) released on Sonic Cafe. December 19th - Sonic Mega Collection released on the GameCube. December 19th - Sonic Advance 2 released on the Game Boy Advance. |
February 3rd - Sonic Advance released on the Game Boy Advance. February 12th - Sonic Adventure 2: Battle released on the GameCube. September 23rd - Sega Smash Pack released on the Game Boy Advance. October - Sonic & Tails Spinner released to arcades. October 13th - Sonic Spinball (Life Savers) released. November 11th - Sonic Mega Collection released on the GameCube. |
March 8th - Sonic Advance released on the Game Boy Advance. May 3rd - Sonic Adventure 2: Battle released on the GameCube. October 13th - Sonic Spinball (Life Savers) released. |
| 2003 (Heisei 15) | January 19th - 17th Osaka Next Generation World Hobby Fair [JP] January 20th-23rd - NATPE 2003 [US] January 25th-26th - 17th Tokyo Next Generation World Hobby Fair [JP] February 2nd - 17th Nagoya Next Generation World Hobby Fair [JP] February 9th - 17th Fukuoka Next Generation World Hobby Fair [JP] March 9th-12th - SAGE Spring 2003 April 18th - Sonic X Production Presentation [JP] April 5th-6th - GameJam Storm [JP] May 14th-16th - E3 2003 [US] June 21st-22nd - 18th Next Generation World Hobby Fair [JP] July 19th-August 31st - Sonic Party 2003 Summer Festival [JP] August 27th-29th - ECTS 2003 [UK] September 9th-12th - SAGE Autumn 2003 September 26th-28th - Tokyo Game Show 2003 [JP] November 13th - CR Sonic presentation [JP] |
CR Sonic released to arcades. Speed DX released on i-mode phones. January 27th - Sonic Putter released on Sonic Cafe. April 6th - Sonic X begins airing. April 21st - Sonic Darts released on Sonic Cafe. June 19th - Sonic Adventure DX: Director's Cut released on the GameCube. July 11th - Sonic Pinball Party released on the Game Boy Advance. October 27th - Sonic Reversi released on i-mode phones. December 4th - Sonic Battle released on the Game Boy Advance. December 5th - Tails no Flying Get released on Sonic Cafe. December 18th - Sonic Adventure DX: Director's Cut released on Windows. December 30th - Sonic Heroes released on the GameCube, Xbox, and PlayStation 2. |
March 9th - Sonic Advance 2 released on the Game Boy Advance. June 1st - Sonic Pinball Party released on the Game Boy Advance. June 18th - Sonic Adventure DX: Director's Cut released on the GameCube. June 27th - Knuckles Soccer, Shadow Grinder, Sonic Action Game, Sonic Speedway, and Tails' Skypatrol given away at McDonald's. August 23rd - Sonic X begins airing. October 6th - SonicN released on the N-Gage. November 9th - Sega Mega Pack released on Windows. |
March 7th - Sonic Mega Collection released on the GameCube. March 28th - Sonic Advance 2 released on the Game Boy Advance. June 27th - Sonic Adventure DX: Director's Cut released on the GameCube. July 25th - Sega Smash Pack released on the Game Boy Advance. October 7th - SonicN released on the N-Gage. October 31st - Sonic Pinball Party released on the Game Boy Advance. |
| 2004 (Heisei 16) | January 18th - 19th Osaka Next Generation World Hobby Fair [JP] January 24th-25th - 19th Tokyo Next Generation World Hobby Fair [JP] February 1st - 19th Nagoya Next Generation World Hobby Fair [JP] February 8th - 19th Fukuoka Next-Generation World Hobby Fair [JP] March - SAGE Spring 2004 May 11th-13th - E3 2004 [US] June 15th-17th - Tokyo Toy Show 2004 [JP] June 19th-20th - 20th Tokyo Next Generation World Hobby Fair [JP] June 27th - 20th Sapporo Next Generation World Hobby Fair [JP] September 10th-14th - SAGE Autumn 2004 September 24th-26th - Tokyo Game Show 2004 [JP] |
Sonic Tennis re-released on i-mode phones. Sonic Heroes Puzzle and Sonic Mega Collection Plus Mini released. February 23rd - Sonic Hopping released on i-mode phones. June 16th - Sonic Tennis and Sonic Billiards re-released on Vodafone phones. June 16th - Speed DX released on Vodafone phones. June 17th - Sonic Advance 3 released on the Game Boy Advance. June 28th - Sonic Hopping 2 released on i-mode phones. July 26th - Sonic Hearts released on i-mode phones. September 15th - Sonic Reversi released on Vodafone phones. September 22nd - Sonic Panel Puzzle released on i-mode phones. October 1st - Sega and Sammy merge to create Sega Sammy Holdings. October 25th - Sonic Gammon released on i-mode phones. November 11th - Sega Superstars released on the PlayStation 2. December - Sonic Darts re-released on i-mode phones. December 1st - Sonic Darts re-released on Vodafone phones. December 9th - Sonic Heroes released on Windows. December 9th - Sonic Mega Collection Plus released on the PlayStation 2 and Xbox. December 17th - Sonic the Hedgehog (Flash) released. |
Shadow Basketball released. Sonic Heroes Puzzle and Sonic Mega Collection Plus Mini released. January 6th - Sonic Heroes released on the GameCube. January 27th - Sonic Heroes released on the Xbox and PlayStation 2. May 14th - Sonic X: A Super Sonic Hero released for the Game Boy Advance. June 7th - Sonic Advance 3 released on the Game Boy Advance. September 14th - Sonic Adventure DX: Director's Cut released on Windows. November 2nd - Sega Superstars released on the PlayStation 2. November 2nd - Sonic Mega Collection Plus released on the PlayStation 2 and Xbox. November 16th - Sonic Heroes released on Windows. December 17th - Sonic the Hedgehog (Flash) released. |
Sonic Heroes Puzzle and Sonic Mega Collection Plus Mini released. Cream Flower Catch released. January 21st - Sonic X begins airing. February 6th - Sonic Adventure DX: Director's Cut released on Windows. February 6th - Sonic Heroes released on the GameCube, PlayStation 2, and Xbox. February 27th - Sonic Battle released on the Game Boy Advance. June 18th - Sonic Advance 3 released on the Game Boy Advance. October 22nd - Sega Superstars released on the PlayStation 2. November 26th - Sonic Heroes released on Windows. December 17th - Sonic the Hedgehog (Flash) released. |