Super Robot Wars OG Saga: Endless Frontier (ç„¡é™ã®ãƒ•ãƒãƒ³ãƒ†ã‚£ã‚¢ ã‚¹ãƒ¼ãƒ‘ãƒ¼ãƒãƒœãƒƒãƒˆå¤§æˆ¦OGã‚µãƒ¼ã‚¬ lit Endless Frontier: Super Robot Wars OG Saga) is a video game of Banpresto, co-developed with Monolith Soft, the studio behind the Xenosaga series. It is a spin-off of the Super Robot Wars: Original Generation series. Released on May 29, 2008 on the Nintendo DS, the title departs from the traditional tactical role-playing game elements for which the Super Robot Wars franchise is known and opts for turn-based role-playing gameplay instead. A drama CD, where events in the extra scenarios of Super Robot Taisen: Original Generation 2 in Super Robot Wars Original Generations are revealed, was given as a bonus gift to consumers who pre-ordered the game in Japan. On February 26, 2008, a manga series based on Mugen no Frontier began serialization in the fourth volume of the Kerokero Ace magazine. The game is licensed by Atlus for North American distribution and released on April 28, 2009 as Super Robot Taisen OG Saga: Endless Frontier. The game was given an ESRB rating of T (for Teen), due to alcohol reference, fantasy violence, mild language, partial nudity, and suggestive themes. Endless Frontier will be a premium boxed release, with a bonus soundtrack CD featuring music from the game included in the final retail package.