Talk:Metal Sonic VS Zero/@comment-30870165-20170703114543/@comment-32295718-20170703142126

^ they would still have to possess a liquid close to blood in them to function, because they would still have a brain thats needs oxygen and nutritions (we see the brain in several FATALITY's)

Zero and Metal don't need a blood-like substance (well, maybe oil, but that isn't EVERYWHERE in a robot)