Ondai

Ondai is a robot that looks like a cylinder that walks on three flat metal legs. Very analytical and constantly running calculations, but is also known to have a sarcastic and narcissistic personality. Ondai's star-racer is capable of transforming into a humanoid mech armed with a pair of energy swords and a battery of missile launchers. He may sometimes get carried away with calculations when too many things around him are mathematically possible, causing him to go into a state of awe, as was exemplified in Optimized Like Ondai. His constant putting-down of living creatures would make one think that he would wish for machines to reign supreme, but this could not be further from the truth; he actually envies organic beings. As a robot, he cannot feel the sensations of touch or warmth, which he longs for. Constant study of living creatures has done nothing, so he hopes that the Ultimate Prize will do that which science cannot; make him flesh and blood, or at least let him feel. His star-racer (in robot mode) was disabled by Prince Aikka in the final race, and he is not seen again.

(Source: Wikipedia)