Zed (Swat Kats)
Zed began existence as Dr. Lieter Greenbox's micro-brain repair unit, a device designed to repair anything mechanical. It was roughly the size of a bowling ball, and after analyzing a broken machine like a radio or clock, several tendrils would extend from the body of the repair unit, take apart the afflicted device, and then swiftly put it back together again, good as new.
The Metallikats, badly damaged from a recent conflict with the Swat Kats, stumbled into Greenbox's lab and used the device to repair themselves. Somehow the machine became sentient, and taking the name "Zed," it followed the Metallikats around and helped them rob banks. In the process, it built up an incredible array of armor around itself, due to the fact Zed had learned how to disassemble machines and assimilate them around itself, increasing its size and strength.
Eventually, Zed grew tired of the Metallikats' lowly ambitions, and sought to find its purpose in the grand scheme of things, by any means necessary. When Mac Mange tried to control Zed, this only angered the robot, who tore apart the bionic gangster and assimilated him, much to the horror of Molly Mange. The Enforcers tried to intervene, but their tanks and weapons, too, were disassembled and absorbed into Zed, which then headed towards Puma-Dyne.
The Swat Kats, with Dr. Greenbox and Molly in tow, followed Zed and tried to stop it from inside, since its target was the Mega Beam, but had a hard time getting past Zed's "antibodies," drone-like robots that sniffed out and destroyed anything non-metallic entering Zed's body. Zed ended up assimilating Molly, too, and then fused with its by-then insane creator, deluded into thinking that its purpose was to help Greenbox conquer the city. Luckily, the Swat Kats were able to destroy the connection between the inventor and his creation and destroy Zed.
- Swat Kats: "Unlikely Alloys" (1994)