Civilization

Later that night Hanzo fly's up to space to think. 

He goes around, practing for tomorrow. 

He punches a energy blast, destroying multiple galaxies. 

Hanzo: "This power is amazing, and I'm not even trying."

He lands on a planet

Life, life was there on the planet, a civilization, but, they weren't friendly. 

They saw Hanzo as a threat, so they began to shoot at him. 

Hanzo dodges their energy lasers. 

Hanzo blitzes multiple soldiers, crushing their heads. 

Hanzo fly's through some buildings, destroying them

If he keeps this up, he'll wipe out the whole civilization

Hanzo: "STOP!!! I don't want to do this, I don't know how to control this power!!!!"

Hanzo fly's through a crowd at the speed of light, the pressure and wind crushes the people in the way, spliting their bodies in half

Hanzo: "Dammit!!!! I'm taking innocent lives."

He blitzes a couple of more soldiers

Finally, he confronts the leader of the Alien civilization. 

Hanzo: "I'm sorry, I'm sorry I have to do this, they attacked me first and I didn't know how to stop, I don't want to hurt you, just surrender."

Unknown Alien: Speaking Unknown Language

Hanzo knows what he has to do. 

Hanzo rushes at the alien, the leader smashes Hanzos back, breaking it, crushing his bones. 

Hanzo coughs up blood

Hanzo regenerates, his bones piecing back together in an instant

Hanzo grabs the Aliens head, and proceeds to punch through it's stomach, ripping out it's organs, finishing it off by crushing it's head. 

Hanzo pants

He fly's back down to earth

But before he goes, he destroydt the planet along with the Alien Civilization. 

Hanzo trains some more, surpassing his limits, going faster than light, massively faster than light. He's surpassing his limits to the max, he's going out of control

Hanzo falls to the ground, exhausted.