Big O

The Big O is the titular robot of Big O and is a super robot featured in Knights of the Multiverse Season 1. Created by the evil organization L.O.S.R., it was another of their robots created to destroy the Crystal Knights.

Personality
Unlike most of his brethern, the Big O wasn't designed to have a personality, only to be a cold, emotionless killing machine.

Armaments
Eye lasers
 * Arc Line

18 missiles located in the abdomen area. A pair of multiple barrel firearm machine guns contained within the forearms, firing energy volleys at high-speed. A concentrated energy beam fired from Big O's crown.
 * Missile Party
 * O Thunder
 * Chrome Buster

The pressurized pistons on Big O's arms retract, and when it releases it in the form of a punch, it releases a massive amount of force, able to destroy almost an entire city block.
 * Sudden Impact