Please leave anything that Skipper has mentioned in the series that happened in his past below in the comments so I can make this fanfiction as close to what happened as I can.
"This is so cool" Flippy whispered, he was lying on a wooden board with a tarp over it, the board was on the top of a wagon that Skipper had pulled into the bushes that were near the convention.
"Alright Flippy, where would the most weapon like inventions be?" Skipper asked.
"Most likely on the northern side" Flippy was proving useful, he could read the map of the convention, while Skipper could only spell his name.
"Alright be back" Skipper belly slid off and ducked quickly underneath a table, he watched the humans stare in wonder at the strange devises for a moment before making a mental note at which one was more dangerous.
"Invisibility ray, love potion creator, Mind switcher devise, h-m nothing bad so far, wait" Skipper leaned forward slightly to see what appeared to be a small button like laser, that when it wasn't being used emitted a red glowing light in the middle.
"Oh no" Skipper whispered, there was a dark lemur like shape in the bushes near where the laser device rested. He snuck forward and ducked underneath another table just in time to see Deadshot reach up and grab the devise.
"No!" Skipper raced out from underneath the table and chased after the lemur, whom always seemed to be only a few feet in front of him. Suddenly Deadshot leapt for a tree, only to be knocked back down by Flippy! Skipper hadn't even realized they had reached the bushes where Skipper had left the dolphin.
"What the-" Deadshot stumbled to his feet, glaring at Skipper, he did a front flip and rammed into Skipper, this move caught him off guard resulting in him being slammed into a nearby tree, stunning him.
"Leave him alone lemur!" Flippy gained the lemur's attention. Deadshot spun around and watched Flippy for a moment before saying:
"Poor little dolphin, that hurt eye must attract much unwanted attention, but you must like the attention because you used to not get it, probable because you were terrible at your job. Now when anyone sees you, they feel sorry for you, that's why your friend here"-Deadshot nodded at Skipper who was still stunned, but trying to find his feet.-"helped you, do you really want to be pitied all your life. It's a real shame too, being upstaged by simple humans when you have so much potential at becoming a great scientist or inventor. After all you seem to know far more than the boy does about the things on display here"
"I'm not a boy!" Skipper stammered, he lunged at Deadshot who punched him in the stomach, Skipper counter attacked by kicking the lemur in the jaw.
"I don't need anyone's pity!" Flippy spat at Deadshot furious.
"He's just trying to get you mad, don't listen to him Blowhole!" Skipper explained, while fighting Deadshot. The killer seemed to be able to infuriate Flippy while fighting Skipper.
"I bet you hate those humans who made you jump through that little hoop, and they put it on fire just to add more excitement without thinking how easily you could have been hurt didn't they?"
"Shut up! Shut up! Shut up! I don't need your sympathy!" Flippy shouted angrily.
"No, but I bet you wish you could create things like these humans can" Deadshot knocked Skipper off his feet, who managed to punch him in the arm at the elbow.
"You know you can create and invent things that the rest of us can only imagine, things that could allow to get even with the humans who treated you so" Deadshot's words reminded Skipper of what Hans had done.
"Ignore him Flippy! Revenge isn't the answer to anything" Skipper tried to reason with the dolphin.
"But aren't you after me boy, because of what I did to your family, if that isn't revenge I don't know what is" Deadshot purred.
"I'm trying to stop you so you can never kill another animal or human again! You're a killer that's why I've been chasing you all over the world, you need to be stopped, you've killed and hurt countless animals and people" Skipper snarled.
"Give up lemur, we've got you beat!" Flippy slapped the lemur with his flipper when the lemur got too close.
"You'll have to catch me first" Deadshot managed to climb into a nearby tree, which Skipper did a wall jump on with another tree to reach the branch where Deadshot was standing. Before Skipper landed on the branch, Deadshot tossed the devise at Flippy, who easily caught it.
"Here's a little gift of our time spent together dear Flippy" Deadshot did a fake salute and raced off, easily ditching Skipper.
"You ok?" Skipper hopped down from the tree and walked ovr to Flippy who was examining the devise.
"I'm fine" the dolphin sounded different as if he were thinking.
"Ok, well we better be getting you back to the Coney Island aquarium" Skipper said.
"Yeah guess so" Skipper tried to ignore the feeling but he couldn't deny his fear at what the dolphin was thinking about.