The bulk of Custom Robo Arena takes place in holographic battle arenas called “holosseums.” Players pit their Custom Robos against one another in fast-paced, melee-style combat. Each Robo can be outfitted with different parts, from arm-mounted guns and bomb launchers to specialized pod weapons that have their own unique behaviors. Some pods pursue the opponent, while others lie in wait for the enemy to draw near. Players customize their robots by swapping out weapons, legs and body frames to create the ideal combination of attack, speed and defense to suit their gaming styles.