The Spriggan manga was adapted into an anime film in 1998, while Project ARMS was adapted into a 26-episode television anime series in 2001.
Minagawa (Project ARMS, Spriggan) launched the manga in Ultra Jump in June 2007.
Viz also released all 22 volumes of his Project ARMS manga in North America from 2003 to 2009.
The June issue of Shueisha’s Ultra Jump magazine published the final chapter of Ryoji Minagawa’s Peace Maker manga (no relation to Nanae Chrono’s similarly titled manga) on Thursday.