One Punch Man: Stronger Enemies

Giant

Suddenly the ground began to crack from within. Tatsumaki quickly lifted up all the heroes into thin air. 'What's happening?' Genos thought. 'I can sense a very big monster emerging from the ground...' Tatsumaki said 'A very strong monster... Maybe even stronger than that Dragon.' Genos widened his eyes. 'That means that it must be really strong.' he yelled. 'It is.' Child Emperor said, analyzing the alien's data into his laptop 'It surely is...' The ground suddenly exploded as a giant blue and blasted out of it. Then they could hear a roar from the alien before he finally completely blasted out of the ground. 

'Woah, you look like the blue version of that big giant I one punched after he killed his own brother as a mistake!' Saitama said, pointing at the blue alien 'The only differences are you are bigger and bluer.' 

Tatsumaki let every hero out of her Psychic grasp now that the monster was finally out. Now they just had to had to face them. Tatsumaki was about to use her Psychic power on the giant but right before that Saitama went up to the giant and one punched his stomach. Blue blood burst out of him as he got blasted into a million pieces. The acid blood did kill some C and B class heroes but the monster still was defeated. Tatsumaki and all the other S Class Heroes who didn't know about Saitama's true power were just dumbfounded. Genos smiled. Sonic was astonished too. 'This is the reason I can never beat him.' he thought 'He is just... too strong... And that is why I decided to be his disciple. If you can't beat 'em, join 'em, I guess...' 

'Aw, man!' Saitama thought 'I thought that defeating this monster would take more than one punch! It looked so big. I thought it would be very strong. Well, guess I was wrong.' All the other aliens ran away, seeing how powerful Saitama was. The giant was the strongest out of all those aliens. 

'Why is my foolish army running away?' Griosta yelled 'They are getting scared of his strength? Well then, why not just team up on him? WHY ARE ALL OF YOU GUYS GIVING UP! YOU WILL PAY FOR THAT!!!!' 

Suddenly Griosta's alien army got surrounded by a pink glow and all of them died since Griosta made ALL their hearts stops with his Psychic powers. 'That's what you get for running away.' he thought 'Well, I guess it's my turn...' He smiled.