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"Gradius V" was released in September 2004 for the PlayStation 2. Graphics are rendered in full 3D, although gameplay is still mostly 2D; some areas change the position and perspective of the camera to emphasize the 3D environment. Treasure (developers of "Gunstar Heroes", "Guardian Heroes", "Radiant Silvergun" and "Ikaruga", among others) were primarily responsible for "Gradius V"s development. In the Japanese first-press limited edition, the game included a book detailing internal design, background, and a road map of the Vic Viper series (i.e., "Vic Viper" is the name of a ship series, rather than a single ship), and pre-ordered North American copies included a DVD detailing the history of the series (including "Scramble") and replays of "Gradius V".