Born April 3, 1963 in Hokkaido, Japan. Tsukasa Matsuko (known by his alias Macco) is a Japanese Sound designer and sound programmer known for his work with Atlus. In 1982, he graduated from Ahibetsu High School and in 1984, he graduated the Japan Electronics College. He currently lives with his wife in Hachioji, Tokyo, Japan.

Tsukasa started working on video games at Tecmo around 1984. There, he scored the music to many of their arcade and NES games. During the development of Mighty Bomb Jack, Tsukasa left the company and Michiharu Hasuya finished up the music. After Tsukasa left Tecmo, he went to work for Atlus and was a composer, sound designer and programmer there. When Hirohiko Takayama started working for Atlus, Tsukasa started to do less music for them.

Some of Masuko's notable works are the Shin Megami Tensei games, The Karate Kid, Kwirk, Bio Senshi Dan, and many others.