Robonez

 Robonez (ロボネズ - Robonezu) is a monster that appeared in the TV series, The Return of Ultraman. He appeared in episode 45.

Subtitle: Rat Monster (鼠怪獣 - Nezumi kaijū)

Powers/Abilities:

 * Poisonous Fangs : Robonez's fangs are coated with venom that can paralyze or potentially kill whatever living being he bites.
 * Flames : Robonez can emit a deadly stream of fire from his mouth.
 * Electric Tail : Robonez’s tail is extremely long and flexible, allowing him to use it as if a tentacle, ensnaring and throwing opponents around, or like a whip. When it has an opponent, Robonez can electrocute them with it.

History
A rat monster created by experimentations from Alien Cygnus-61, Robonez was unleashed on humanity to try and kill Goh Hideki (The host of Ultraman Jack.) Instead, Robonez was confronted by MAT who fought hard but were unable to stop Robonez. Soon Goh had to transform into Ultraman Jack to fight it and the creature lashed out with its flames and tail, bringing the hero down and clamping onto it with his poisonous fangs. As Jack’s power began to run low, he launched his Ultra Bracelet into its jaws and Robonez was reduced to a skeleton that quickly fell part.

Trivia

 * Robonezu's roar are slowed down Pigmon grunts.