Custom Robo Arena takes place in the not-too-distant future, mankind relies on tiny, telepathically controlled robots to perform dangerous tasks. Deep-sea research, disaster relief and interplanetary exploration are all done by Robos -- popular and easily customized machines. Robos also form the favorite sport of tomorrow: battling in the holographic arenas called "holosseums." Now that criminals have taken to using these mighty miniature machines as weapons, the Custom Robo phenomenon has grown into a problem for the whole of society. Competitors battle customized robot warriors in holographic battle arenas. Victory is determined not only by fighting skill but also by how well Robo Commanders design their robot gladiators, so players need both brawn and brains to survive.

Explore a sci-fi landscape as they fight toward the Custom Robo championship, powering up their Robos as they go