In 1998 he co-produced the project BITMAN with the art unit Maywa Denki.
[1][2] Kuwakubo works with varying mediums, most commonly utilizing digital or electronic aspects, and a typical theme his works center on is contrasting matter.
[4] In The Tenth Sentiment the viewers walk around a room as a model train with an LED light maneuvers along a set of tracks, focusing a light at commonplace objects on the ground which subsequently cast large shadows on the walls of the room.
These shadows change from crowds of people, to cityscapes, to tunnels as the piece continues.
The Tenth Sentiment was awarded a prize of excellence at the 14th Japan Media Arts Festival which described it as an "attractive work" which avoids the "cliché interactive art works that tend to depend too much on technology",[1] and described by art critic for The Japan Times, Matthew Larking, as "arguably the most attractive work" of the exhibit.