Super Robot Taisen OG Saga: Endless Frontier is a unique sci-fi/fantasy RPG that takes players across a variety of worlds, ranging from an apocalyptic wasteland covered with the hulks of downed spaceships to a fantastical place of fairy tales and dark magic. Join Haken Browning: gunslinger, professional bounty hunter, and amateur ladies' man, along with his motley crew of robots, were-beasts, secret agents, and busty princesses as they delve deep into the mysteries of how their worlds came to be and face a threat that imperils the multiverse.
- Super Robot Taisen is back - Built on the DNA of the beloved Super Robot Taisen series, Endless Frontier expands the scope of the universe into a saga of multiple worlds and the conflict of humans, robots, and countless others living across space and time. The long-awaited return of the series brings with it with a brand new story and characters and a reinvented battle system.
- High-action chain combat system - Enemies go up and stay up with a battle system that lets you juggle foes with a run of kicks, punches, slashes, gun attacks, bombs, and more! Chaining is the name of the game, and timing-based button presses let you create an acrobatic string of assaults. You can even call in allies to keep the chain going longer!
- Customize your attack combos - Pick and choose from a menu of attack skills to create the combo line-up you want to use in battle. Skills vary in strength and resources used, in addition to side benefits of stunning, triggering critical hits, and more.
- Bonus items - Owners of the Super Robot Taisen Original Generation games for Game Boy Advance can unlock bonus items in their Endless Frontier game by booting the game with the GBA cartridges in the GBA game slot of their DS unit.
This game is also known as Mugen no Frontier: Super Robot Taisen OG Saga in Japan.