Vermin the Cybernik

Vermin first appeared in #90, and was created by Lew Stringer and Roberto Corona. Originally an anonymous anthropomorphic, humanoid rat, he was an informant for the Freedom Fighters but betrayed them to Robotnik out of the desire to be a Cybernik. He proved to be a vicious thug and bully in his armour, relishing the power and the ability to do damage to weaker Mobians. As well as superhuman strength and indestrutible metal armour, he shoots laser from his eyes and his tail can inject a crippling computer virus.

He lured the Freedom Fighters into a trap in the Gum Tree Zone, defeated Shortfuse the Cybernik and almost wiped out the team in his first appearance; only by using the Zone's natural resources was Amy Rose able to force Vermin to retreat. He clashed once more with Shortfuse at a later date, this time losing after the desire to beat him consumed the hero. He then was part of Grimer's Badnik army sent in to put down a Metropolis Zone uprising, cornering the Freedom Fighters and only being defeated when Super Sonic's EM pulse offlined his armour.

Vermin was incarcerated after Robotnik was defeated but broke out at New Year's Eve. Going on one last rampage, he battled Shortfuse for a final time; attempting to use his computer virus on his enemy, it was his armour that became infected with a program that caused it to open up. Shortfuse destroyed the armour while it was vulnerable, leaving Vermin as a regular criminal.

In Sonic the Comic Online, Vermin is locked up in the same asylum as Robotnik, wearing a replica of his Cybernik armour. It was stated on the message board that wearing that is what had him be judged insane and sent to the asylum.