Tsukushi Sasaki (better known as Tsukishi) is a Japanese composer, sound designer and sound programmer. She began her video game music career around 1989 when she started working at Mint. She worked with Mint's founder, Michiya Hirasawa, on several projects. She also worked with the late Akihiko Mori when he joined. Sasaki is the only surviving member of the group. Though she did not work on many well known soundtracks, she is perhaps best known for her work on Tecmo Secret of the Stars.
For the rest of her SNES games, she used a custom sound driver by Mint. The driver was possibly written by Sasaki and Hirasawa.