Atlas' first appearance was in "Only Human". When Cyborg beat him in a video game, Atlas demanded a rematch. However, he wanted to fight him hand to hand, not online. Atlas defeated him multiple times, owing to Cyborg's inability reach more than 100% because he was half robot. However, Cyborg found that it was his will that let him go over 100% in the past, so Cyborg used this as knowledge to defeat Atlas. He was defeated because Spike had left him and Atlas did not know how to fix his armor himself.