Author's Note:

From now on, when Ben uses an Alien or Ultimate I haven't written yet, the whole Present Mic Announcement will happen along with the sort of Fun Fact pop ups from Ben 10 OS, they will be sectioned off with lines as they are not relevant to the plot. Another thing the poll is over and only one person voted, so Ben will be in Class 1-B (Fight me 1-A fans).

A few months ago...

"Come on Omnitrix!" Ben muttered, Rumi was making her advances whilst Ben was cycling through the Omnitrix. Ben was knocked onto the ground, "ow..." Ben groaned. Rumi swept him off his feet with a blow to the ankles. "Y'know you need to stop thinking of a form to use." She sighed. "When you think too much they'll find an opening like just now." She helped Ben up. "One more time!" She called, Ben nodded. He slammed the Omnitrix. He was now a large crab with a large head with small spikes lining the edge the carapace where it could open up. He wore a belt with the Omnitrix around his midsection. His eyes were large and circular, his mouth was similar a crabs mouth. "Brain Storm?" He said, surprised. As he spoke the separate pieces of the mouth moved creating a clicking noise.

Brain Storm

Species: Cerebrocrustacean

Planet: Encephalonus IV

Powers: Enhanced Intelligence, Ability to find and Exploit weaknesses, Mnemokinesis, Telepathy, Telekinesis, Electro Kinesis, Immunity to Mental Attacks, Mind Control to a small degree and Water Breathing

Other Info: The nearby planets of Encephalonus I, II and III, which share a sun with Encephalonus IV, comprising their own solar system, have long been depleted of their own natural electrical resources by the predecessors of the Cerebrocrustaceans. Learning from the mistakes of their ancestors and determined not to repeat past disastrous errors, the Cerebrocrustaceans have evolved to be able to generate their own electrical storms just by thinking hard enough, contributing to their homeworld, rather than depleting it

Immediately, Ben's brain was rapidly calculating a strategy. Rumi mad her advance again, Ben dodged at surprising speed for a giant crab, Rumi lunged again Brain Storm's carapace on his head opened and a blast of electricity shot from his enlarged brain, it had hit its target. Ben saw an opening he slammed the Omnitrix again and switched to Fasttrack, he landed a powerful kick to Rumi's lower abdomen, launching her to the other end of the park they. "And that's how I do..." Ben smirked. He transformed back into human and ran over to Rumi, "You okay?" He said as he pulled up his mentor off the ground. "One more time" Ben joked, Rumi sighed and nodded.

Present Day...

"UA High... You're ain't seen nothing yet" Ben muttered, he was wearing a white and green hoodie that Rumi gave him a while ago. His duffel bag was slung over his shoulder. He started walking down the arched path leading to the school. A whole variety of teenagers were crowding. "Hey Ben!" Said a voice, he turned to see Pony. "Hey," he called back. "So you're joining UA too?" He asked. Pony nodded excitedly and then they started to talk for a while before another voice called. "Tennyson-san!" He said bye to Pony and walked to the voice. "Izuku!" He greeted after finding his green haired friend. Izuku was walking to him before he tripped, Ben was about to react when a girl touched Izuku and he was floating. Ben sighed with relief and walked off into the building.

After the written exam Ben had caught up with Izuku, "So, whose the girl?" Ben asked jokingly, Izuku looked flustered and started spouting up nonsense. "Jeez, man I was kidding." He punched Izuku in the shoulder, "Come on race you there!" Ben called as he dashed off to the building where the rules for the practical exam was taking place.

After a quick explanation of the rules by Present Mic every was waiting outside of the training grounds where the exam was taking place. "Woah, this looks like another part of the city, where do they get the money to build and maintain this," Ben muttered to himself, "So I just need someone to cover the ground quickly..." A horn blared and the examinees ran in there. Leaving Ben and Izuku in the dust. Izuku ran off, Ben sighed, "Looks like this is going to be too easy" He slammed the Omnitrix. In his place was nothing. Other than a tiny light. "Nanomech. You gotta be kidding!" Piped a tiny voice. (I will not do it for Nanomech because he isn't an actual alien but a human nanochip hybrid.) Nanomech slapped the Omnitrix on his face and Ben was now a giant Ultraman-esque alien. "WAY BIG!" He roared.

Way Big

Species: Tokustar

Powers: Large Size, Cosmic Storm Control, Electrokinesis (Can redirect Electricty like a lightning rod, he can't manipulate electricity), Arm Blades, Enhanced Strength, Enhanced Durability, Enhanced Stamina, Laser Beam Projection, Sound Wave Projection and Enhanced Sensory (Mainly Touch and Hearing)

Other Info: Tokustars are born in the heart of cosmic storms and despite their intimidating appearance, They are quite peaceful and stand guard of the outskirts of galaxies acting as sentries.

Way Big clanged the two blades on his arm creating a large shock wave of sound. The Tokustar was making his descent to the fake villains. Ben was sweeping aside villains and was racking up point's at a rate similar to everyone's favourite Dynamite Stick with Anger issues. The only thing stopping him was the fact he could crush students and kill them instantaneously. I should go to something slightly smaller. He slammed the Omnitrix. "This is new..." He muttered as in his place was a large man resembling Nikola Tesla with mint green skin, he was wearing a green and black steampunk-esque outifit. Small tesla coils akin to that of Frankenstrike grew from his back. Small crater-like organs glowed with light. "So this guy controls gravity," Small sparks flew from his hands "A small form of electrokinesis? Sweet!" The organs on his legs and arms started glowing and Ben launched himself through a wall... "Ow..." He groaned. "That hurts, but more important things, what should I call this guy?" Ben decided to put up the name debate going through his head aside. There was an exam to do...

Half an hour passed and he finally came up with a name as well master the form's gravikinesis. He was able to destroy a few more bots and rack up some points. The ground rumbled... "Holy shit... That's the 0 point bot. Where the hell do they get the money for these things?" Ben muttered. "Antigravitesla won't cut it, I have to get out fast." Ben slammed the Omnitrix. In his place was a small bug, yellow in color, a pronged horn resting on his large head. The Omnitrix was on a collar on his neck. "New transformation? This guy better have something else going for It other than the power of cuteness." He muttered in a high pitch voice. At that moment he coughed up a slime ball. "Gross..." he commented at this forms power.

He didn't stop to question where the ball came from so he jumped on the ball, rolling it around, gaining size and momentum as he went. He was about to hit a building before he jumped off causing a large green explosion in the side of the building. "Forget gross. This is cool!" He said excitedly, "I have an idea..." Ben spat a ball and started rolling this time towards the 0 pointer. He was picking up momentum ready to throw the ball at the bot before he heard a crash. Something fast had smashed into the head of the robot. He caught a glimpse of the person who was falling. Izuku?! Is he trying to SPEEDRUN into the afterlife or something? I'm too high up to grab him and I don't know if the ball will blow up if I try to catch him. He started panicking internally. He stood their helplessly as he watched his friend plummet to his death. Until he stopped falling. Is that the girl that Izuku met from before? He timed out and rolled off the ball landing on his back side. "Ow..." He groaned... And like that the exam was over.