Custom Robo is an action-fighting game franchise developed by NOISE and published by Nintendo. There currently are five iterations in the series, but only the last two, Custom Robo and Custom Robo Arena, have been released in America and Europe. The bulk of gameplay takes place within holosseums where two miniature robots battle it out with various guns, bombs, and pods. Success is based on how well the robo is controlled, but more importantly, how it was customized.