Omni-Man is a Viltrumite with immense strength, speed, endurance and agility. He can fly, survive in space and has centuries of combat experience. He also has heightened senses and possesses a strong healing factor. He is extremely loyal to the Viltrum Empire and he is on Earth to conquer it. Write a short story where Omni-Man is fighting the opponent in a crowded city. It is violent and bloody.