~~Alien Ga Kill~~

Disclaimer: I do not own Ben 10, Ben 10 belongs to man of action and cartoon network.

And

I do not own Akame Ga Kill, Akame Ga Kill belongs to square ENIX.

Note: This is a fanfiction, written by fan for another fans, this fic is not for profit.

Chapter 1: Prologue

Plumber headquarter.

Ben Tennyson, the savior of the universe, the omnitrix owner, the walking disas… cough… cough, the most powerful creature of the galaxy, right now he was sitting in a chair while looking at the monitors of the security cameras with a bored expression on his face.

Ben is now 18, he has grown a bit in the last two years after the defeat of Maltruant. Ben has changed his clothes. Now he wears a black leather jacket, this jacket have a two horizontal green stripes one on each side in the chest region. Underneath a green t-shirt with a black vertical stripe in the center, jeans and all-stars tennis in green and black colors. on the back of the jacket there has one green circle with a 10 written with black letters in the center of the circle.

'' Oh man, this is so boring.'' Ben complained.

This night is the Ben rotation to guard the prison of the plumber headquarters. The plumber headquarters has been in orbit since Kundo tried to infected all plumber bases in the universe with a computer virus. The virus would make the self-destruct mechanism of all bases activate , thereby causing the destruction of all plumbers in the universe, but luckily Rook, Ben and Robucket defeated kundo and prevented this from happening.

'' You just jealous? '' Rook Taunted, Rook has talking by the communicator of the plumber badge.

Rook had not changed in the last two years. He still wore the same blue proto-armor, with his proto-weapon on his left shoulder.

Rook was in undertown, in the middle of a shootout between the plumbers and the psyphon gang.

'' Yeah, obvious I am.'' Ben retorted, '' Guard the prisioners it sucks.'' Ben yelled with angry.

'' Well someone has to do it.'' Rook said.

'' Why me?'' Ben asked angrily.

'' Because it´s your turn.'' Rook replied with funny slime.

'' You're loving this, huh?'' Ben questioned with a sullen expression in your face.

'' Who knows?'' Rook replied with sarcasm.

'' haha very funny.'' Ben said ironically.

Rook was hiding behind a wooden box to protect himself from the blaster shots that came from members of the Psyphon gang.

'' Ben I need turn off the communicator.'' Said Rook before turn off the communicator.

After the turn off the communicator Rook jumped on the wooden box and he turned his proto-weapon into a bow and fired three arrows simultaneously that hit three members of the Psyphon gang: one pickaxe alien, Tummyhead and Sweet-Eels.

When rook landed on the ground, the other members of the gang began firing toward him, he then turned his proto-weapon into a shield and defended himself from the blaster shots.

Ben yawned , he felt rather bored, but suddenly the alarm sound begins to ring, this caught Ben's attention, he looks at the control panel and finds that the alarm was activated in the deposit.

'' It seems that something triggered the alarm in the deposit.'' Ben verified.

Ben walked to the elevator, he got into the elevator and clicked the button on the floor of the deposit.

'' It's better I take a look at the deposit.'' Ben said.

The elevator went down to the floor of the deposit, after the elevator door opened, Ben got out of the elevator and walked to the Ben arrived at the warehouse, he could hear some voices talking to each other.

'' Finally we got into the deposit of plumbers headquarters, all thanks to the teleporter I bought.'' Psyphon boasted.

'' Well said boss. Cluck'' Liam said while making chicken noises.

'' Thunder Pig liked the boss's plan a lot.'' Thunderpig said.

'' So where is that thing we came to steal boss?'' Bubble Helmet asked.

'' Speak lower, they still must have plumbers here at headquarters.'' Gorvan Complained.

' Is Psyphon, Liam, Thunderpig, Govarn and Bubble Helmet, what are they doing here?' Ben asked himself mentally.

'' No reason to worry, I ordered the rest of the gang to create a huge mess in the undertown, to attract the attention of the plumbers, now at the headquarter should be no strong plumbers, So we can steal the mechardise and get out with my new teleporter.'' Psyphon told his plan to his henchmen.

Psyphon took an orange rectangular metal box out of his pocket with a large red button on its surface, on the side of the red button was an LCD screen and a small keyboard with several buttons.

'' This is my new techadon teleporter.'' Psyphon said he said as he pointed to the box in his right hand. '' I bought it from Inspector 13, and it cost me many taydens.'' Psyphon commented.

'' So… Cluck What did we come to steal anyway? Cluck'' Liam asked.

Psyphon turned to Liam and grabbed him by the collar. Psyphon had a furious look on his eyes.

'' We came here to steal the sub energy, you idiot, as you may have forgotten, I'd said our goal to 20 minutes ago, because I only get stupid Henchmen to work for me?'' Psyphon said as he rattled Liam angrily.

'' So what is this sub-energy?'' Thunderpig asked confuse.

'' Ahhhh I don´t belive this, How stupid can you be?'' Psyphon aksked exhausted

'' The sub-energy is a energy source with a power 20 times higher than the sun, in the past the plumbers received the sub-energy as a reward from a group of aliens as gratitude for having defeated a dangerous criminal.'' Psyphon explained.

'' But the sub-energy was destroyed 8 years ago by tennyson.'' Psyphon said.

'' So what are we doing here? If the energy was destroyed then we have nothing to do here.'' Gorvan said angrily.

'' Don't interrupt me you dumbass, let me finish to speak. Two years ago the plumbers received a new sub-energy, the same aliens wanted to thank Tennyson for having prevented that Chronosapien from altering the beginning of the universe.'' Psyphon replied on edge.

'' why didn't you say it before?'' Gorvan asked.

'' I would have spoken, if you did not stay interrupting me.'' Psyphon cried out with angry

'' Sorry.'' Gorvan replied embarassed.

'' Okay, If none of the fools has any more idiocy to speak , let's steal the sub energy and get out of here.'' Psyphon ordered.

' that's it, I've heard enough,It's hero time.' Ben said mentally.

Ben start to spinning the dial of Omnitrix, when you found the icon of the desired alie, he slams the dial, the Ben body was covered by a green light, he turns into a black alien with two antennae on top of his head, a green stripe in the center of his body, and gold screws on his arms and shoulders, the dial of Omnitrix is in your chest.

''Feedback.'' Ben cried, Ben stretched his arms forward and the plugs from the tip of his fingers he fired an eletricity beam toward the Bubblue Helmet.

The green light of the transformation of ben caught the attention of the five creatures in that deposit.

'' Whats is t…'' The Bubblue Helmet was talking when he was hit by a eletricity beam in his chest, the beam sending the bubble helmet flying until the wall of the deposit, his body collides with the wall and then falls unconscious on the floor.

'' One fool is down, Who is next?.'' Ben said confidently.

'' Tennyson? '' Psyphon yelled, shocked.

'' Why are you here? Why you're not with the other plumbers in the undertown fighting against the rest of my subordinates?'' Psyphon questioned frustrated, the fact that Ben was at the Headquarter did not please him.

'' Why am I here? I'm here to kick your asses, Duh!'' Ben replied with a funny smile in your face.

'I thought about contacting the others, but Rook was enjoying the fun without me, to get revenge, i´ll finish this alone and I'll take all the fun for me.' Thought ben maliciously.

'' Finishim him, while I look for the sub energy.'' Psyphon commanded.

'' Talks is cheap.'' Gorvan complained.

Gorvan suddenly leapt forward and reared back his two right fists to throw punches trying to hit ben, but Ben was faster and jumped back to avoid the punches.

Ben pointed his two antennas towards Gorvan and fired an electric beam, the electric beam hit Gorvan and electrocuted him with several volts, Gorvan gave a cry of pain and got to his knees with his body covered in smoke.

Liam was running towards Feedback on the right side.

'' Cluck You gonna pay for that Tennyson Cluck.'' Liam yelled and jumped toward Feedback.

Thunderpig was running towards Feedback too, but on the left side.

'' You are ate my father with lettuce and tomato on a wheat roll, prepare to die.'' Thunderpig screamed and jumped toward Feedback too.

Feedback pointed the tip of his fingers to the ground, then he projected energy against the ground making him be propelled up, getting out of the way of the two that would attack him.

Thunderpig and Liam then collide their heads in the air, then they both fell on their backs to the ground.

'' That would have stirred their neurons, if they had any. haha'' Ben sneered.

Gorvan still haven't fully recovered from the last attack, he was still stunned, nd flew towards Gorvan, he landed on Gorvan, Knocking him down on the floor and standing on his body.

'' This is going to be shocking.'' Ben said.

Ben put the plugs of his fingertips on Gorvan's chest, Ben then used his electricity to electrocute Gorvan, Gorvan gave a grunt of pain before being completely knocked out.

Ben leaves Gorvan and looks at his body full of burns caused by electricity and covered in smoke.

Ben turned toward Thunderpig and Liam, they were already standing, then he smiled with satisfaction.

'' All fun is mine.'' Ben said.

Psyphon was searching for the sub energy inside the deposit while his henchmen fought against Ben.

Until he saw it well in the background the deposit a glass ball floats enveloped by a force field of cylindrical form, inside the glass ball were two rods in upright position, one below and one above and in the center of the two rods was a yellow energy sphere.

'' Finally I found it, the sub energy.'' Psyphon celebrated.

Psyphon approached the force field, just like the old mount rushmore, it could only be disabled with the use of two keys hidden in different places.

'' Even if I do not have the keys, crossing that force field will not be a problem for me.'' Psyphon said presumptuously.

He got from his pocket an orange cylindrical object, the object had four inches tall and had a red button at its underside.

Psyphon pressed the button, then at the upper end of the cylinder appeared a red blade laser.

'' The techadon blade laser, this blade has the ability concentrate all its power in a unique point, thus being able to cut even fields of force.'' Psyphon explained.

Psyphon tries to cross the force field with the blade, when the blade crosses the force field he gives a victorious smile.

'' This blade was very expensive, but worth every penny.'' Psyphon commented.

'' Thunder, thunder, Thunderpig…'' Thunderpig screamed as he spun his energy flail in the air. '' Hoooooo.'' Thunderpig sended the metal ball with thorns that stay on the tip of flail in the Feedback direction.

Ben easily get deflected from the metal ball then grabbed the chain from the flail, Ben then with his plugs at the tips of his fingers sent energy through the chain to the Thunderpig, when the electricity hit him, he was electrocuted, Thunderpig gave a cry of agony , Before falling to the floor unconscious with his body bruised and covered with smoke.

'' Cluck I gonna beat you Tennyson Cluck.'' Liam said before retreating his fist back and trying to hit a punch in Ben, Ben then crossed his arms in front of his chest to form an X blocking Liam's punch.

'' I doubt it very much.'' Ben teased with a confident smile on his lips.

Liam tries to hit a kick in Ben's head, Ben bends down to deflect the kick and with his antennae hits Liam's eyes, Liam grunts then retreats two steps while rubbing his eyes.

Ben takes advantage of the moment of distraction, and grabs Liam with both his arms and raises him above his head, Ben fires from the plugs at his fingers two bursts of electricity that send Liam flying to the roof of the deposit, after for courtesy to gravity, Liam falls on the floor of the deposit unconscious.

'' Now it's time to beat the Psyphon.'' Ben spoke and then ran to look for the Psyphon.

When Ben got to where Psyphon was he had already made a hole in the force field enough for a person to pass through him.

'' Stop with it now Psyphon!'' Ben Cried.

Psyphon turned to face Ben.

'' Why do not you try to stop me, Tennyson?'' Psyphon provoked.

Psyphon held the blade laser with his right hand and the teleporter with his left hand, he then turned to the glass ball that contained the sub energy, Psyphon was going to cut the glass with the laser blade and take the sub energy.

Ben ran toward Psyphon but realized he would not make it in time, so he had an idea, if it was the time he needed, he had the right guy to get it, Ben hit the Omnitrix dial on his chest, his body was covered by a green light, so when the light dissipated in the place of Feedback was a robot-looking alien, with its bronze skin, black stripes and a piece of green circular glass on his chest that showed gears inside his body, the Omnitrix dial was on his chest.

'' Clockwork.'' Ben yelled.

The gear on top of the clockwork's head began to spin, so time was frozen, Ben was the only one who could move, he ran until Psyphon grabbed him and threw him away from the sub energy, so the gear on Clockwork's head stopped to spin and the time has returned to normal.

Psyphon then realized that he was flying through the air, until he fell back on the ground and gave a groan of discomfort.

'' What happened?'' Psyphon questioned.

He looked in the direction of Ben and saw that he had turned into a Chronosapian, so he understood what had happened, Ben had used the temporal powers of his Chronosapian form to prevent him from catching the sub energy.

'' Damn you, Tennyson.'' Psyphon Yelled.

'' Now I'm going to end this teleporter so you can not get away.'' Ben said.

Ben stretched his right arm forward and fired a temporal beam to the teleporter on Psyphon's left hand, but when the green beam hit the device instead of aging and turning to dust it started to glow, so it exploded releasing a wave of energy Which covered the whole room, when the wave dissipated, Ben and Psyphon were gone.

Rook jumped in the direction of a Piscciss Volann, he stretched his leg and hit a kick in the head of the alien, the alien fell to the floor knocked out.

Rook turned to the other plumbers and realized that all the members of the gang had already been defeated.

'' I think we're done here.'' Rook commented.

'' Yes we done it.'' Magister Patelliday said.

'' Let's go back to the headquarter.'' Max Tennyson ordered.

The others nodded, Magister Patelliday pressed the button and activated the teleporter of the plumber the headquarter, all the plumber and the handcuffed prisoners were teleported to the plumber headquarter.

Rook glanced toward the monitors, and saw that Ben was not there.

'' Where's Ben?'' Rook asked with preocupation.

They all turned and saw that Ben had disappeared.

'' I don't belive this, that boy left his post because he was bored and left without telling anyone.'' Max said with angry.

Rook walked over to the monitors and read what was written on one of them.

'' Its says here that the alarm was triggered in the deposit.'' Rook said.

'' Ben must have gone to check on what was happening.'' Magister Patelliday suggested.

'' So let's deposit it and find out what's going on.'' Max ordered.

Everyone took the elevator and went down to the floor of the deposit, when they arrived at the deposit, they saw Liam, Thunderpig, Bubble Helmet and Gorvan fainted on the floor.

Everyone looks for the deposit, but found no sign of Ben's presence.

'' Ben, Where are you?'' Max cried with despair.

Continue…

Next chapter: In another dimesion.