is a 2005 action-adventure game developed by Neverland and published by Hudson Soft for the PlayStation Portable. It was released outside Japan by Konami. The game received mixed reviews upon release. It was followed by a sequel, Rengoku II: The Stairway to H.E.A.V.E.N., which was released in 2006.
Story The player assumes the role of an android called A.D.A.M. (Autonomous Dueling Armed Machine) which was designed by humans as a war machine. However, after world peace was achieved, humans placed the androids in a tower which they named Purgatory. The androids were then instead used as entertainment, with the humans forcing them to fight in gladiatorial-style battles. The player controls one of the androids, who has become sentient and is attempting to escape from the tower and the other androids sent to stop them.
Gameplay
Reception
The game received "unfavorable" reviews according to Metacritic. In Japan, however, Famitsu gave it a score of 27/40. GamePro said that the game "doesn't break down, but it doesn't break new ground either."
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