La Pucelle: Ragnarok is the PSP version of La Pucelle: Tactics, a tactical role-playing game originally released by Nippon Ichi Software for the PlayStation 2 in 2002. It can be considered as the thematic predecessor of Disgaea, and it's also loosely related to their Marl Kingdom series. La Pucelle: Ragnarok has a lot of updates and brand new elements compared to the original PS2 version. There are new scenarios such as the Demon King Purie route, and the bonus stages where Disgaea characters make their appearances. There are also new special skills, stage bosses and an updated battle system. The game's Japanese release is set for November 26, 2009.