Games
Other video game related works
Gallery Part 1
Gallery Part 2
Altered Beast (Master System - 1989)
Graphic design (Source: mentioned in an interview published in the January 1997 issue of Sega Magazine)
Away: Shuffle Dungeon / アウェイ シャッフルダンジョン (DS - 2008)
Character design, producer (Source: in-game credits)
Balan Wonderworld (PS4, PS5, Xbox One, Xbox Series, Switch, Windows - 2021)
Development producer, character designer (Source: in-game credits)
Blinx: The Time Sweeper / ブリンクス・ザ・タイムスイーパー (Xbox - 2002)
Character design (Source: in-game credits + mentioned by the artist on Twitter: 1, 2, 3)
Director, game design (Source: in-game credits)
Blinx 2: Battle of Time & Space / ブリンクス２：バトル・オブ・タイム＆スペース , AKA Blinx 2: Masters of Time & Space (Xbox - 2004)
Director, game design (Source: in-game credits)
Blue Dragon / ブルードラゴン (Xbox 360 - 2006)
Executive Producer (Source: in-game credits)
Burning Rangers / バーニングレンジャー (Saturn - 1998)
Director, graphic artist, character designer (Source: in-game credits)
Character portraits (line art) (Source: mentioned by the artist on Twitter)
Chaotix / カオティクス (32X - 1995)
Character design (Vector, Charmy Bee) (Source: mentioned in an interview published in Untold History of Japanese game Developers Vol.3)
Christmas NiGHTS into Dreams / クリスマスナイツ 冬季限定版 (Saturn - 1996)
Director, visual designer (Source: in-game credits)
Ghost Vibration / ゴーストヴァイブレーション (PS2 - 2002)
Game design (Source: in-game credits)
Golden Axe / ゴールデンアックス (Mega Drive - 1989)
Graphic design (Source: mentioned in a 1993 interview)
Golden Axe III / ゴールデンアックスIII (Mega Drive - 1993)
Concept art / Unused illustrations? (Source: mentioned by Yosuke Okunari on Twitter)
Hey! Pikmin / Hey! ピクミン (3DS - 2017)
Development producer (Source: in-game credits)
Hokuto no Ken: Shin Seikimatsu Kyuuseishu Densetsu / 北斗の拳 新世紀末救世主伝説, AKA Last Battle (Mega Drive - 1989)
Art director (Source: in-game credits)
Jigen Kairō / 時限回廊, AKA Echoshift (PSP - 2010)
Producer (Source: in-game credits)
Ju-on: The Grudge / 呪怨 (Wii - 2009)
Chief producer (Source: in-game credits)
Kujaku Ou / 孔雀王, AKA SpellCaster (Mark III - 1988)
Graphic design (Source: in-game credits)
Mario & Sonic at the Rio 2016 Olympic Games / マリオ&ソニック AT リオオリンピック (3DS - 2016)
Supervisor (Source: in-game credits)
Mario & Luigi RPG3 DX / マリオ＆ルイージRPG3 DX , AKA Mario & Luigi: Bowser's Inside Story + Bowser Jr's Journey (3DS - 2018)
Production Management (Source: in-game credits)
NiGHTS into Dreams / ナイツ into dreams... (Saturn - 1996)
Director (Source: in-game credits)
Character design (Nights) (Source: mentioned by the artist on Twitter: 1, 2, 3, 4, 5, 6)
Phantasy Star / ファンタシースター (Mark III - 1987)
Character design: Tyron / Odin (Source: mentioned by Rieko Kodama in a 2003 interview)
Monster design: about one third of them (Source: Untold History of Japanese game developers vol.3)
Graphic design: Tyron / Odin cutscenes (Source: mentioned by the artist on Twitter)
Phantasy Star II / ファンタシースターII (Mega Drive - 1989)
Graphic design (enemies) (Source: Untold History of Japanese game developers vol.3)
Pinobee no Daibōken: Quest of Heart / ピノビィーの大冒険 Quest of Heart, AKA Pinobee: Wings of Adventure (GBA - 2001)
Director, character design (Source: in-game credits)
Rambo III (Master System - 1988)
Graphic design: in-game illustration(s) (Source: mentioned in an interview published in Sakura Wars Serenade)
Rocky / ロッキー (Mark III - 1987)
Graphic design (Source: mentioned by his colleague Masato Nishimura on Twitter)
Shi no Meikyu: Labyrinth of Death / 死の迷宮, AKA Fatal Labyrinth (Mega Drive - 1990)
Designer (Source: in-game credits)
Sonic Adventure / ソニックアドベンチャー (Dreamcast - 1998)
Story event coordinator, Event motion designers, CG movie producer, Opening movie editor (Source: in-game credits)
Sonic the Hedgehog / ソニック・ザ・ヘッジホッグ (Mega Drive - 1991)
Cover art for the Japanese version and European version: line art (Source: mentioned by the artist on Twitter: 1, 2)
Character Design (Source: in-game credits. color setting)
Manual illustrations (Source: mentioned by the artist on Twitter)
Promotional illustration: sketch (Source: mentioned by the artist on Twitter)
Game design (speed and loops), Game system (including the special stages), Graphic design: Sonic, opening and ending illus, Green Hill (with), Spring Yard (Source: mentioned by the artist on Twitter. animation sketches. ending draft)
Stage concept art (Source: mentioned in an interview published by Beep21)
Sonic the Hedgehog CD / ソニック・ザ・ヘッジホッグCD (Mega-CD - 1993)
Director (Source: in-game credits)
Cover art for the Japanese version (draft. Finalized by Kazuyuki Hoshino) (Source: mentioned by the artist on Twitter)
Character design (Amy, finalized by Kazuyuki Hoshino) (Source: mentioned by the artist on Twitter: 1, 2, as well as in an interview)
Sonic 3D: Flickies' Island (Mega Drive - 1996)
Advisor (Source: in-game credits)
Sonic Jam / ソニック ジャム (Saturn - 1997)
Supervisor (Source: in-game credits)
Sonic Mania / ソニックマニア (PS4, Xbox One, Switch, Windows - 2017)
Promotional illustration (Source: mentioned by the official Sonic Twitter account)
Sonic R / ソニックR (Saturn - 1997)
Graphic advisor (Source: in-game credits)
Sonic Spinball / ソニック・スピンボール (Mega Drive - 1993)
JPN cover art (draft) (Source: mentioned by the artist on Twitter)
Space Harrier 3D / スペースハリアー３Ｄ (Mark III - 1988)
Art designer (Source: in-game credits)
Super League / スーパーリーグ, AKA Tommy Lasorda Baseball (Mega Drive - 1989)
Graphic design ("Fielder Designer") (Source: in-game credits)
Super Racing / スーパーレーシング (Mark III - 1988)
Graphic design: title screen (Source: mentioned by Yosuke Okunari on Twitter)
Tataite Hazumu Super Smash Ball Plus / たたいて弾む スーパースマッシュボール・プラス, AKA FlingSmash (Wii - 2010)
Senior producer (Source: in-game credits)
Terra Battle / テラバトル (iOS, Android - 2014)
Character illustrations x2 (Source: in-game credits)
The King of Fighters EX: Neo Blood / ザ・キング・オブ・ファイターズEXネオブラッド (GBA - 2002)
Art Director (Source: in-game credits)
Vampire Rain / ヴァンパイアレイン (Xbox 360 - 2007, PS3 - 2008)
Producer (Source: in-game credits)
Wii RemoCon Plus Variety / Wiiリモコンプラス バラエティ, AKA Wii Play: Motion (Wii - 2011)
Director (Source: in-game credits)
Yoshi's Island DS / ヨッシーアイランドDS (DS - 2006)
Senior producer (Source: in-game credits)
Yoshi's New Island / ヨッシー New アイランド (3DS - 2014)
Development Producer (Source: in-game credits)
Yoshi no Banyuu Inryoku / ヨッシーの万有引力, AKA Yoshi Topsy-Turvy, Yoshi's Universal Gravitation (GBA - 2004)
Producer (Source: in-game credits)
Untitled fighting game (~1994, unreleased)
Director (Source: mentioned by Yosuke Okunari in several interviews: 1, 2)
Dreams Come True's 1990 tour poster
(Source: mentioned by the artist on Twitter)
Harmony (internal newsletter)
Cover illustrations (line art) (Source: mentioned by the artist on Twitter: 1, 2, 3, 4)
JEF United - soccer team logo (feat. Sonic)
(Source: mentioned by the artist on Twitter)
Sega Sonic Cookies
Illustration (Source: mentioned by the artist on Twitter)
Sonic the Hedgehog (anime - 1996)
Supervisor (Source: credited in the anime)
SPEC 7.5 (newsletter)
illustration(s) (Source: signature found on the artwork)
Terra Wars / テラウォーズ (iOS, Android)
(Source: )
Irimajiri demo (Dreamcast - 1998)
Designer (Source: )
Games
Other video game related works
Gallery Part 1
Gallery Part 2