Three-Eyed Ghost

Three-Eyed Ghost (三つ目ゴースト, Mittsume Gōsuto) was a Mysterious Being that appears after Saitama saves a man from committing suicide. He was killed by Saitama.

Appearance
Three-Eyed Ghost was a monster with a face that consisted of nothing more than eyes and a mouth. Its body was entirely black with little to no detail and had four arms, two legs, and two horns. It was about eleven times taller than an average human.

Salmon
Three-Eyed Ghost affects a man into committing suicide before he is saved by Saitama, it then starts openly attacking civilians.

Abilities
Its abilities were not seen, but it is considered a Tiger level threat. It was able to destroy a building. It collected the negative emotions of workers and could become as big as a multi-story building. It is said that whoever gets struck by the venomous breath of this being lose self-consciousness and when they find themselves, they realize that they were planning their own suicide.