Meta-Cooler Core

Meta-Cooler Core is the fusion of Cooler's remains with the Big Gete Star, a self-replicating machine intelligence. After Cooler was destroyed by Goku and launched into the sun, a fragment of his body was recovered by the Big Gete Star, which rebuilt him as the central processor of its network. The Core can manufacture endless Meta-Cooler drones, each one powerful enough to challenge Super Saiyan Goku and Vegeta simultaneously.

After Goku destroyed Cooler with a Super Kamehameha that launched the tyrant into the sun, a surviving fragment of Cooler's body drifted through space until it was intercepted by the Big Gete Star. The star recognized Cooler's extraordinary biology and made him its central processing unit, merging his consciousness with the machine network. What emerged was neither fully organic nor fully mechanical.

When Goku and Vegeta confronted the Meta-Cooler army on New Namek in Return of Cooler, they destroyed one drone only to face hundreds more. The Saiyans were eventually captured and connected directly to the Core, which began draining their energy. However, Goku and Vegeta overloaded the Core by flooding it with more energy than its circuits could handle, causing a chain reaction that destroyed the Big Gete Star and the Core along with it.

Each Meta-Cooler drone possesses power comparable to or exceeding Cooler's Fourth Transformation. The drones can be repaired and upgraded by the Big Gete Star instantly after taking damage and can adapt to and counter any attack pattern after analyzing it once. They also drain energy directly from opponents through cables.

The Core itself is physically fragile despite the strength of the drones it manufactures. If opponents can reach and destroy the Core directly, the entire Big Gete Star network collapses. The combined effort of Goku and Vegeta overloading the Core proved that overwhelming its circuits with excess energy is also viable.