In Captain Qwark's vid-comics he claimed that it was he who foiled the Amoeboid attack, and chased Nefarious down to his factory on Magmos. The guards failed to stop Qwark and Nefarious was pushed down into the factory machines, transforming him into a robot. Nefarious made one more attempt at redemption, and with a wider robot army created by him, his Empire invaded Metropolis on Kerwan. Once again, the attack was beaten by Qwark, and Nefarious was defeated in combat. After kidnapping Qwark and taking him to an ice base, Qwark escaped, and Nefarious plotted a vendetta against organic lifeforms over the next few years. It is likely that this is all fiction created by Qwark however, as he was busy working for Chairman Drek, and then planning for his return in Bogon, at the time.