When "Pineapple Army" ended, Urasawa began "Master Keaton" for "Big Comic Original" in November 1988. He illustrated it, while Hokusei Katsushika wrote it. It ended in August 1994 and was collected into 18 volumes. An anime television adaptation began in 1998, before finishing as an original video animation in 2000. Likewise when "Yawara!" ended, Urasawa began another solo series in "Big Comic Spirits". "Happy!" ran from 1993 until 1999 and was collected into 23 volumes. It was adapted into two live-action television films in 2006.