Toshiyuki Sasagawa was born on February 1, 1962 in Hakodate, Japan. He graduated from Hakodate La Salle High School. In 1983, he attended Hokkaido University of Education, but dropped out when he moved to Sapporo, and eventually joined Hudson Soft as a programmer.
In 1986, he designed and developed their game Meikyuu Kumikyoku: Milon no Daibouken, later released in North America as Milon's Secret Castle. He also worked on their Tengai Makyou series of games. Though Sasagawa was tasked with various duties at Hudson Soft including production, game design, and programming, most of his credits were for audio composition and programming. He was also responsible for arranging musician's songs to the target consoles, such as Takeaki Kunimoto (who he also brought on board to Hudson Soft's sound team). This was because the company moved him to the sound department due to his musical background.
Sasagawa left Hudson Soft in 2001, working on his own musical endeavors. He later started working as a spiritual counselor as well. Though he no longer works on video games, he still continues to write and perform music for various companies. Toshiyuki is currently a therapist, counselor, and healer at Mitsui no Salon (Salon of Light).
Sasagawa used Fumihiko Itagaki's sound driver and made modifications to it for his needs. The music was written in assembly. Sasagawa never actually composed for the NES, but instead would arrange Takeaki Kunimoto's music.
Since his arrangements of Takeaki Kunimoto's songs are note-for-note, Sasagawa most likely received not only Kunimoto's recordings, but the original music files as well.
|1985-10-15||Challenger (FC) (チャレンジャー)||
||Arranged Takeaki Kunimoto's music.|
|1986-06-13||Star Soldier (NES) (スターソルジャー)||Arranger?|
|1986-11-13||Milon's Secret Castle (NES) (迷宮組曲 ミロンの大冒険)||Sound programming, sound effects  |
|1987-10-30||Shanghai (PCE) (上海)||
|1987-11-21||China Warrior (TG16) (THE 功夫)||
||Arranged Daisuke Inoue's music.|
|1987-11-30||J.J. & Jeff (TG16) (カトちゃん ケンちゃん)||
|| Sound Effects with Toshiaki Takimoto|
|1987-12-28||Victory Run (TG16) (ビクトリーラン 栄光の１３、０００キロ)||
|1988-12-04||Fighting Street (TCD) (ファイティング・ストリート)||Sound Director|
|1988-12-04||No Ri Ko (ROM2)||Sound Engineer|
|1989-03-04||Cobra: Kokuryuu Ou no Densetsu (ROM2) (コブラ・黒竜王の伝説)||Sound Director|
|1989-08-10||Break In (PCE) (ブレイク・イン)||
|1989-10-27||Kagami no Kuni no Legend (ROM2) (鏡の国のレジェンド)||Game Sound Supervisor|
|1990-06-29||Urusei Yatsura (ROM2) (うる星やつら ☆STAY WITH YOU☆)||Music Director|
|1990-07-06||Super Star Soldier (TG16) (スーパースターソルジャー)|
|1990-09-14||Mitsubachi Gakuen (ROM2) (みつばち学園)||Sound: Supervisor|
|1990-11-23||J.B. Harold Murder Club (TCD) (Ｊ．Ｂ．ハロルドシリーズ＃１ 殺人クラブ)||Sound Support|
|1991-??-??||Ys III: Wanderers from Ys (ROM2) (イースIII ワンダラーズ フロム イース)||Sound Direction|
|1992-04-24||Star Parodier (ROM2) (スターパロジャー)||Sound Producer|
|1993-07-10||Tengai Makyou: Fuuun Kabuki Den (ROM2) (天外魔境・風雲カブキ伝)||Sound Department Manager|
|1993-12-22||Ys IV: The Dawn of Ys (ROM2)||Music Supervisor|
|1994-06-04||World Heroes 2 (ROM2) (ワールドヒーローズ 2)||Sound Director|
|1994-07-22||Super Bonk (SNES) (超原人)||Sound Producer|
|1994-12-12||Super Bomberman 2 (SFC) (スーパーボンバーマン2)||Sound Producer|
|1994-12-23||Team Innocent: The Point of Return (PCFX)||Sound Producer|
|1995-07-28||Tengai Makyou: Dennou Karakuri Kakutouden (PCFX) (天外魔境电脳络缲格闘伝)||Sound Producer|
|1995-12-21||Tengai Makyou Zero (SFC) (天外魔境 ZERO)|
|1995-12-22||Tengai Makyou Zero - Tangible Fear (SFC)|
|1996-03-22||Do Re Mi Fantasy: Milon no Dokidoki Daisakusen (SFC) (ドレミファンタジー ミロンのドキドキ大冒険)||Sound Producer|
|1997-01-14||Tengai Makyou: Daiyon no Mokushiroku - The Apocalypse IV (SAT) (天外魔境 第四の黙示録)|
|1999-12-17||Mario Party 2 (N64) (マリオパーティ２)||Sound Advisor|