Quick author's note: Hi. This is kind of a continuation of a Futurama/IZ crossover I did, but you don't have to read it to get this one. It was really small, like a prequel-short or something. Anyway, this'll be long probably. I don't own anything but the idea, blah blah blah. Have fun random strangers!

The purple haired girl sped forward in her stolen spaceship, weaving through the trees as she was being chased by a pissed alien.

Yeah, she had stolen it, so freaking what? She was bored and there was nothing else to do. Yeah, she could've played her Game Slave 2, if the stupid little green creep hadn't stolen it for expiriments. His real payback would come later.

A mountain came up in front of her suddenly, and for a second, she didn't know where to turn. She noticed a cave, so she decided to ditch the ship and go on foot. She sped up, zooming straight into the side of the mountain, and jumped out just in time. She walked up to the cave, ignoring the explosion behind her, and went in.

About a yard in, she heard another explosion and guessed the alien had done the same she had. She started running and looked over her shoulder at the charred pursuer. Apparently, he had been too stupid to actually jump out of the ship before it exploded. Idiot.

She kept running, and soon the light from outside had dissapeared and it was pitch black. She had to run her hand along the slimy walls to be sure she didn't walk right into them. Listening to the sounds of his steps, she guessed he was a few feet behind her. Then, she noticed they stopped.

That could only have meant one thing.

She went faster, and soon heard the metal clicking of the spider legs that no doubt had come out of his PAK, some wierd alien device that gave him most of his otherworldy abilities.

A light emerged from far away in front of the girl, and she went towards it, thinking it was the other side of the tunnel, but she was wrong. It wasn't daylight, it was something in the cave. Something that glowed.

Once she reached it, she saw that she was at a dead end. Well, since she was already caught, she might as well have seen what it was. She picked up the glowing object and saw that it was some radioactive can of pop. Poop, to be exact. Poop Cola. Something that had happened about a year ago itched at her brain, but she had no time to think about it.

She shook the can as hard as she could, then waited.

Everything was eerily silent, apart from her vibrating can. She shook it a little more. Suddenly, something dropped from above her, and she opened the tab of the can, watching as a glowing liquid sprayed her attacker. He screeched, and she could see smoke rising from his skin.

"THE PAIN! THE PAIN!"

"Whiner." the girl taunted as she bagan to walk away, half a can of radioactive Poop still in her hand.

Her foot shot forward as she stepped on the edge of the puddle the unconsious alien was laying in. She fell, soaking herself in the strange liquid. She felt a strange feeling overcoming her, a feeling of power. Every power she had, human or otherwise, strengthened by a thousandfold.

She stood up and realized she was taller, and that she was glowing. She turned to the wet cave wall and looked at herself. She looked older, maybe 18, and her hair was longer, about down to her waist. She looked at her hand and saw black energy dancing from finger to finger. Turning to her pursuer, the energy grew.

She looked at him, and saw that next to his twitching body his human-looking contacts were laying on the ground. "Well, Zim," she said softly, noting her adult sounding voice and aiming her hand at the cieling over him. "I hope you enjoyed your last day."

The dark energy shot out of her hand and hit the top of the cave. The whole mountain began to shake, and she ran out. She stood in the forest and watched as the mountain collapsed, killing the troublesome little alien.

She walked away, feeling something in the pit of her stomach. The more she tried to figure out what it was, the more it grew, so she decided to ignore it and finally go through with what she'd been planning for years. And that little idiot was finally out of the way.

Enjoy your payback, Zim.

! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! !

It was nighttime, and still nobody had noticed that the mountain had collapsed. All was silent in the forest, until the pile of rubble began vibrating. Green light shot out from the rocks, then was gone as quickly as it had come.

The night was dark, so not much could be seen, other than the shine of red eyes and a grin, showing zipper like teeth. She thought she had killed him.

She was wrong..