Monster Name: Mognezun Monster Appearances:  Return of Ultraman Mognezun is a prehistoric kaiju covered in sharp spikes. Its modern-day awakening gave it a deadly new ability: expelling poisonous gas. This development was caused by leftover chemical weapons from World War II Japan had dumped yellow toxic gas in the area where Mognezun had been hibernating. Feeding on the gas triggered this lethal adaptation. Besides its poisonous breath, Mognezun is an expert digger, capable