Federation vs Zeon DX is a home port of the 3D, third person action arcade game by the same name, set in the Gundam universe.
The game is primarily a deathmatch between four players in mobile suits.
There was an updated version of the game released titled Kidou Senshi Gundam: Renpou vs Zeon DX that included more options, such as space battles.
The home versions included a Campaign Mode and unlockable Extra Mode.
The arcade mode had support for up to four players, while the PS2 versions supported two players, and the Dreamcast version only supported a single player.