Thanks for the reviews guys… (Although I like my head… and it's not that tasty). I think it's time to get this fic rolling, away from the first chapter.

Disclaimer- Alas, I don't own Invader Zim. I do own Invader Rai and RIR though.


Chapter Two – RIR's Revenge

As time progressed, night turned into early morning. The moon was beginning to descend, and according to human time, it was about three in the morning. The newly landed Irken was searching what the humans called the 'Internet', trying to gather information on their ways of life.

"How can Zim not have taken over this planet? He's had months!" Rai proclaimed, looking around, expecting RIR to respond, but it turned out he was talking to himself. Rai walked into the elevator, rode it up to the top floor and walked out. "RIR?" he called, beginning to worry. RIR wasn't the kind of robot that just wandered off.

Rai shrugged. "He's probably out gathering information, or supplies, or something."

With that in mind, he returned to scanning the human archives for information.


It was the worse disguised base he'd ever seen. RIR was sat in the bushes, cloaked, opposite the home of that green puppy he'd seen earlier. There was no doubt to him that wasn't a puppy. It didn't belong. RIR scanned the base for defences. The short, stumpy human ornaments were loaded with lasers… and that was about it. He walked out into the cul-de-sac, and across to the 'house'. With complete confidence, he walked past the defences, unseen thanks to his invisibility. Then, he knocked on the door. Almost automatically, it opened, and two robots appeared.

"Welcome home, son!"

RIR panicked for a second, worried that his disguise was failing. Then, he realised it must be automatic, and strolled past them. The door shut, and the robots retreated into a section in the wall. Ahead of him, sat on the floor in front of a large screen, was the green puppy. It seemed transfixed on the screen, which was showing some sort of deformed primate.

The cloaking device switched off. The green puppy turned to look at RIR. There was an awkward silence. It stood up and looked at him. Suddenly, there was the sound of a flush, and someone rose up in the shadows of the next room.

"GIR! Stop watching that stupid monkey and come down into the base!"

The master was Irken. There was no doubt.

"…and get that stupid Earth creature out of here!"

"Puppy!" the thing known as GIR agreed, turning and walking towards RIR. Just as GIR was about to touch him, RIR decided what to do. He leapt up out of his disguise, jumped over GIR and confronted the Irken.

"Zim Detected" he announced, adopting a defensive stance. Zim seemed surprised.

"Aaaaaaaaaaah! It's a SIR unit! Hold on a second…"

Zim closely examined the black SIR unit.

"Those eyes… those gold-yellow eyes…" he muttered, "…there's something about it which Zim can't put his mighty Irken finger of Zim on…"

GIR stood, transfixed, holding the black dog costume in his hands.

"Where'd doggie go?" he asked, turning around.

"Well, strange SIR unit… let's just track your owner and see who sent you here…"

A helmet on a long metal wire dropped down from the ceiling, and landed next to RIR.

"Oops…"

Zim picked it up and strapped it to RIR's head. There was a large golden flash of light, causing Zim to step backwards and shield his eyes with his gloved hands. When the light cleared, the helmet had been broken into several pieces.

"Yes… yes…" Zim cackled, reading the results, "You must have been sent by the Tallest to aid the almighty Zim! With you by my side, no one can stop us! Not even that pathetic worm-baby Dib human!"

"You are not my master" RIR announced, causing several rocket launchers and weapons to appear on his sides.

"GIR! Destroy the intruder!" Zim ordered, causing GIR to jump out of his disguise and reveal his array of weaponry. The two SIR units turned to face each other. Zim activated some sort of force field, which surrounded the two of them, creating a mini-arena.

"You're gonna go boomy! Yay boomy!" GIR yelled, preparing to fire. RIR activated his cloaking device, and vanished into thin air.

"Wait! What trickery is this?" Zim yelled, considering turning down the force field, but then reconsidering. An invisible force lifted GIR up into the air, and threw him upwards. He seemed to be as confused as Zim was. Suddenly RIR reappeared, and a missile flew upwards towards GIR. There was an explosion, a happy scream of "I caaan fly!" and GIR was sent flying up through the roof, and far away. There was a fizzing, sparks filled the room, and the force field dropped.

"Analysis. Defences, minimal. Disguises, pathetic. Intelligence, presumably low" RIR announced, picking up the dog costume from the floor, and putting it on.

"Great… you destroy GIR, insult the almighty base of Zim, and now you're stealing GIR's dog suit. Is there anything else you would like from the house of Ziiiiim?"

"Mission complete. I will now return to my master"

"Can I come?" Zim asked hopefully. Judging by the expression on the SIR unit's face, plus the missile he was aiming at Zim's head, the answer was no.

"Farewell, Invader Zim"

With that, he fired.