Mognezun

Mognezun (モグネズン - Mogunezun) is a monster that appeared in the TV series, The Return of Ultraman. He appeared in episode 11.

Subtitle: Poison Gas Monster (毒ガス怪獣 - Dokugasu kaijū)

Powers/Weapons

 * Poison Gas : Mognezun can expel a yellow poisonous gas from his mouth. It is powerful enough to kill humans in seconds. Use on ultras can cause distorientation.
 * Spikes : Mognezun's back is covered in spikes, touching them can temporarily shock/repel opponents.
 * Burrowing : Mognezun can burrow at moderate speeds.

History
Mognezun was a monster who had been feeding on Poisionous Gas being dumped by Japan's Army, giving the monster his poisonous gas powers. Mognezun used his gases to attack trespassers who neared his terriotory before MAT could react or arrive. After taking out one of MAT's members, the rest of MAT tried to take care of the situation, at first they seemed to get the advantage by placing a giant muzzle over Mognezun’s dangerous mouth, but Mognezun eventually pried it off and sprayed his gas at Goh, Luckily, Ultraman Jack appeared and the two fought. While Ultraman tried to fight the monster, Mognezun used his poisonous spikes to paralyze Jack and started poisoning Jack with his gas. MAT quickly returned with a new weapon, A gas machine that exhaled a white gassy substance that countered the effects of Mognezun’s gas. With Mognezun's gas effect nullified, Ultraman Jack was able to regain control of the fight and ultimately struck Mognezun in the head with his Jack Kick, causing Mognezun to keel over and die.

Trivia

 * Mognezun's roar is a slowed down Kiyla roar.
 * Although not physically seen, Mognezun is one of the monsters that makes up Beryudora's Body in Mega Monster Battle: Ultra Galaxy Legend The Movie.