Robo is very useful because although he does not use magic, his techs can inflict three types of it, which are listed in the tech list. Robo was discovered in Proto Dome, broken down. Lucca repaired him and the group gained a new ally. Later found out is the fact that Robo was first used to kill humans, but Lucca programmed that out of him. He confides at the end of the game that she has taught him emotions. Robo has a high attack power.