1UP: Review, by Robert Ashley: "Rengoku is basically a series of inconveniences and bad design decisions." [Score: 2 out of 10]
CCG: Provides hints and unlockables.
GameFAQs: FAQs, cheats, reviews, game saves, and a message board.
GameSpot: Reviews, news, previews, images, videos, cheats, links, and a forum.
GameSpy: Review, preview, news, screenshots, and cheats.
GameStats: Videos, screenshots, average scores, and article links.
GameZone: Review, screenshots, news, and links.
Gaming Age: Review, by Brian Peterson: "Game play, in a word, frustrating. I also have another word, boring!" [Grade: D-]
IGN: Reviews, screenshots, videos, previews, news, and a message board.
PSX Extreme: Review, by Frank Provo: "The graphics are sharp and the animation is smooth, which is what you'd expect from a PSP game." [Score: 4.6 out of 10]