Tenchu: Time of the Assassins (Tenchu: Shinobi Taizen (天誅 忍大全) in Japan) is an action-adventure stealth video game developed by K2 LLC and published by From Software in Japan and Sega in Europe for the PlayStation Portable in 2005. This marks the first game in the series not to be released in North America. The game features many characters from previous Tenchu games, including some deceased from previous titles. Time of the Assassins includes a "buffed up" mission editor, first introduced in Tenchu Shinobi Gaisen.