Robo was created to assist humans in the Proto Dome over a thousand years into the future from where Crono, Marle and Lucca live. He is designed to be humanoid, and after Lucca repairs him, he begins to show he is much more than just another robot. He's able to show human emotion to an extent, and wishes to help his new friends save all times, bringing a peace to his desolate future.

Tone: Medium. Robo should be slightly robotic, but only slightly. As he shows human emotion, he also shows a slightly human speech pattern through the game. This said, I don't want his words to flow quite as well as the human characters, but not so choppy he sounds like something from a 90's answering machine. He's from 2300 AD, remember.