Custom Robo is a 1999 action game for the Nintendo 64, combining elements of customization and battle mechanics. Players control a young boy who forms a bond with a toy robot named Lei. Alongside his cousin, he competes in a tournament at Robo Station, aiming to defeat the champion builder Mamoru. The game features 3D arena battles where players can customize their robots for combat.
Custom Robo is sort of a sci-fi action take on Nintendo's own collect-and-battle style Pokemon titles. In the game's story mode, you slip into the role of a young boy who has just built his very own toy robot who goes by the name of Lei. Together with your cousin, you head down towards Robo Station to take part in a giant Custom Robo battle championship that takes place in the local Holosseum. The ultimate goal is to improve your skills so that you can defeat the champion Custom Robo builder of them all, Mamoru. Gameplay involves robo customization and frantic action battles in confined 3D arenas. Followed by a sequel.