Rengoku II: The Stairway to H.E.A.V.E.N. is a sequel to the original Rengoku: The Tower of Purgatory, continuing its predecessor's style of high-paced, dungeon-crawling action. Released in 2006 for the PlayStation Portable (PSP), this game allows players to once again dive into a cybernetic ascent through a post-apocalyptic tower, filled with combat-driven gameplay. The genre blends action with role-playing elements, and the game boasts improved graphics, a new arsenal of weapons and customizations, as well as deeper strategic combat.