Seppuku by a tight field dressing, and then perish, bringing about a dramatic end. Some samurai chose to perform a considerably more taxing form of seppuku known as "jūmonji giri" (十文字切り, "cross-shaped cut"), in which there is no kaishakunin to put a quick end to the samurai's suffering. It involves a second and more painful vertical cut on the belly. A samurai performing "jūmonji giri" was expected to bear his suffering quietly until he bleeds to death, passing away with his hands over his face. Female ritual suicide (incorrectly referred to in some English sources as jigai), was practiced by the
Samurai Warriors 4 , a social spin-off game released on April 22, 2014 for the mobile phones also to commemorate the series' 10th anniversary. Koei Tecmo also collaborated with the Japanese Racing Association (JRA) to release on May 25, 2014 for the PC. "Derby Musou" reuses assets from "Samurai Warriors 4" to create a horse racing game, like that of the "Winning Post" series, with famous Japanese racehorses. Eight characters from "Samurai Warriors 4" make up the playable cast, plus Matthew C. Perry (known in-game as just Perry). The game received a revision, titled , which was released in Japan on February 11,