After Cooler's previous defeat, parts of him lived on and actually become absorbed by a robotic star. The star then started producing millions of robotic type Meta Coolers. In this "upgraded" state he far surpassed his previous strength and in addition can have any mistake or flaw instantly fixed by the Big Ghetti Start when found. It is later shown that these are not the real Cooler, and are all being controlled by part of Coolers brain back in the Big Ghetti Star.
Except where otherwise noted, text is available under the Creative Commons Attribution-ShareAlike License.