Author's Notes:

Hello, it's me again. I'm the guy that wrote Heylin Takeover, although I didn't get many replies to it. I'm hoping that this, the sequel, will get more responses. If not, I might just stop writing. Give me feedback!

Oh, and just as a side note, I don't own anything related to Kim Possible. You probably already knew that, but I just wanted to make sure.

Chapter 1: Another Crazy Scheme

Drakken was on his knees trying to work out the kinks in his latest invention, as usual. Shego was on the other side of the room, reading one of her thousands of magazines. She looked over at Drakken and saw that he was having some trouble.

"Need help?" she asked sarcastically. "What is that thing, anyway?"

The machine looked like one of those arcade games with the huge dome on top and buttons on all four sides. It was about the same size, but instead of having strange little devices inside it for throwing coins, it had an orb that was currently black. Every once in a while, the orb pulsed with a dim light.

When Shego interrupted him, Drakken hit his head on the inside of the machine. "Gah! Shego, must you interrupt me while I'm working?" He pulled himself out of the machine and stood up with a wrench in his hands. "See, now, you made me disconnect one of the wires."

"Oh, quit whining," Shego said. She put her magazine down and jumped over to where Drakken was standing. Being used to this, Drakken stepped out of the way.

"Now what are you doing?"

"Helping you." Shego reached into the machine and grabbed the wires that had been disconnected. In a flash of green light, the wires had been reconnected. "You're welcome," she said before jumping back to her chair. Drakken grumbled something and went back to work.

A few hours later, Drakken stood up and cracked his back. "Ah, it's finally finished." He stood over his latest invention with a feeling of great success.

"Took ya long enough," Shego muttered. "I suppose I don't need to ask you what it does."

"That's right, Shego. I call it… the Retro-spectrometer!"

"Uh-huh… which means?"

"This device will teleport anybody within range into their own past!"

"Ah, I see. If we use that machine, we'll already know how Kim Possible defeats us, so we can avoid it!"

"Exactly, Shego! Now, let's power this baby up!"

"Hold on there, Dr. D. How are we supposed to get back?"

"Don't worry, Shego. I've got that part figured out." Drakken showed her a device attached to his wrist that had a series of buttons on it. "Using this, I'll be able to control the Retro-spectrometer remotely, no matter what time we're in. Now, let's get this baby started!" Drakken went around to three sides of the machine, punching in the codes that would start the device. At that moment, the door was blown open, and a very familiar voice came through it.

"Step away from the machine, Drakken," Kim Possible shouted.

"KIM POSSIBLE!" Drakken screamed. "GAAAH! Well… you won't foil this plan!" He ran over to a desk and picked up some sort of ray gun, aiming it at the doorway. "This is where it ends, Possible!" He held the trigger for a second, which was just enough time for Kim to pull Ron out of the way. The energy blast went through the door and hit the wall outside.

"Since when does Drakken have firepower?" Ron asked.

"Since I invented this all purpose weapon," Drakken explained, holding up the gun and turning a knob on the side of it. "Not only is it a death ray, but it's also equipped with a tractor beam!" He aimed the beam at a machine near the doorway, ripping it out of the ground and throwing it in Kim's direction. She jumped back out the doorway, leaving Ron trapped in the room with Drakken and Shego.

"I'll get Possible. You take care of the buffoon," Shego ordered. She blasted the hunk of metal out of her way and followed Kim out the door.

"No problem," Drakken responded. He turned the knob again and fired a few quick shots at Ron. Fortunately, Ron tripped over a wire, and the blasts went right over his head. Drakken was very annoyed at this point. "You may have gotten lucky that time, but you…" Before he could finish, Rufus jumped on his hand and bit through his glove. He screamed in pain and dropped the ray gun.

"Dude, you really gotta learn to stop talking," Ron told him.

Outside, Shego and Kim were battling it out like they always did. "Don't you ever get tired of this?" Shego asked.

"Yeah, right. I can't resist a challenge," Kim answered. As they fought, they moved closer and closer towards the door.

"Oh, that's so sweet. You consider me a challenge," Shego said in a cute tone of voice. "Too bad I have to destroy you." She kicked Kim right through the door. Kim slid across the ground and crashed into the Retro-spectrometer. Shego prepared to finish Kim off with a plasma bolt.

On the other side of the room, Ron was dodging Drakken's constant barrage of laser blasts. "Man, why'd Drakken have to go and invent a ray gun for himself?" he asked Rufus. The mole rat was hiding in his pocket again.

"You're done, um… whatever your name is!" Drakken held down the trigger for a few seconds.

"Bad move, Drakken! Face the wrath of Ron Fu!" Ron lunged at Drakken with his foot in the air. At the same time, Kim moved to the side of the machine, barely dodging Shego's plasma blasts. Fortunately, her powers alone weren't enough to mess up the Retro-spectrometer. She aimed at Kim again and prepared to attack.

Drakken switched his machine back to tractor beam just in time to freeze Ron in mid-air. "Uh-oh… this wasn't supposed to happen!" Ron shouted. Drakken slammed him into the ground and continued charging the gun.

"You're doomed, Stoppable!" he shouted. He released the trigger just as Shego fired more bolts at Kim. Kim ducked, and the two attacks collided. "Shego, look what you've done!" Drakken complained. A ball of energy hung in the air where the attacks had met.

"What I've done?" Shego asked. "Your stupid ray gun thing got in my way!"

"If you hadn't missed Kim Possible, it wouldn't have been in your way!"

"Um, guys… we've got more important matters to deal with," Kim pointed out. The energy orb began pulsing. Ron ran over to where Kim was, in front of the door. A second later, the orb exploded, spreading electrical energy all over the room. Everybody was thrown to the floor. The Kimmunicator flew out of Kim's pocket and into the hallway.

The electrical pulse went right through the Retro-spectrometer, causing it to spark. "Oh no," Drakken whispered. "It's activating!" The orb inside the machine began to glow intensely. Bolts of electricity jumped from the orb to the inside of the dome. Then, in a sudden flash of light, everybody in the room was gone.