(A/N: Here's Chapter 4!)

[T.U.F.F. HQ]

The Cheif: Keswick, what's the status of Agent Puppy and Katswell's mission?

Keswick: Well Cheif, according to the s-s-s-surveilence footage on one of our cameras on Main Street, they have defeated the c-c-creature.

The Cheif: Awesome!

Keswick: But it gets worse.

The Cheif: Say wha?

Keswick: The creature somehow s-s-s-survived their hardest attacks. And now, he used a multi-colored ball with a weird logo on it. A S-S-S-Smash Ball, if I recall correctly.

The Cheif: Aha, go on...

Keswick: He used it to transform to a giant monster. He later throwed 2 giant fireballs at them, thus k-k-k-k-killing the agents in the process.

The Cheif: Wait a minute, Keswick. Are you saying that Agents Puppy and Katswell are...DEAD!

Keswick: Well, that's what I thought. I mean the monster threw 2 giant fireballs at them. They're severly wounded right now, but they could be passed out. Check out the footage.

Keswick acssesed the surveilence footage via The Cheif's computer. It shows Giga Bowser, still standing, and Dudley and Kitty on the floor, severly wounded.

The Cheif: I can't believe that monster defeated my best agents! It would be awesome if they're back on their feet, but still...

Trooper: What's wrong, Cheif?

The Cheif showed the footage to the Trooper.

Trooper: Holy cow! That's one giant reptile! O_O

The Cheif: Yeah, and he defeated MY best agents!

Agent 1: We heard that Agents Puppy and Katswell are defeated. Why?

The Cheif showed the footage.

Agent 1: Defeated by a mere giant monster-like reptile. Darn it...

Soon, the entire building went to The Cheif's office and saw the footage. They're surprised, shocked and sad.

Agent 2: Everyone don't panic! I saw on TV shows that if you believe on the ones you love, they might get back on their feet! Maybe it'll work on them.

The Cheif: Then what are you guys waiting for, then? START BELIEVING!

Agent 1: We believe in you two!

Agent 2: You guys are the only ones who can save Petropolis from evil!

Trooper: You guys can do it!

Keswick: You guys are the best a-a-a-agents ever!

The Cheif: C'mon, you two! Get up and get rid of that monster!

Everyone: YEAH!

Meanwhile in a endless white void...

[Mystery Zone]

Kitty: Ugh...what happened...? Dudley?

Dudley: Huh? What happened? Where are we?

?: You're in your sub-concious.

Dudley: Huh? Who said that?

?: Me.

Dudley and Kitty couldn't believe their eyes. In front of them is a floating white creature with some sort of divine power. It also has the power to transform to any element.

?: I'm Arceus, the Alpha Pokemon and creator of the universe. I'm also known as the Original One.

Dudley: Arceus? I think I have you in a video game, hmm?

Arceus: ...?

Kitty: Anyway, why you're here?

Arceus: I came to tell you two that you're the chosen ones.

Dudley: Say wha?

Arceus: You two are the only ones who can save Petropolis and the world. Everyone is waiting for you two to complete that mission. Just look at everyone believing in yourselves.

Arceus then opened some kind of portal that showed everyone at T.U.F.F. waiting for them to get up.

Arceus: See what I mean? Now, I'll leave you two to defeat the monster.

Dudley: We can't! I mean, he's invincible! He also has this dark power flowing around him!

Arceus: Dark power? Well, I bring light! So, if he's invincible, I'll make you guys more invincible!

Dudley: Really?

Arceus: Yes. Now, it's time to bring that monster to justice! Ahem...

Dudley: Here it comes! =D

Arceus: ...スーパー でんせつの パワー! (Super Legendary POWER!)

Two orbs of light came right out Arceus's body. Then, they immediatly went to Dudley's and Kitty's chests, straight to their hearts.

Dudley: Whoa, what's this power?

Arceus: That, my friend, is some of my source of power. With it, you too can be a divine being like me. They revive you, heal your wounds, and makes you guys invulnerable to any attack, including attacks from darkness. You guys can also have abilities normal organic beings can't posess. Well, I hope this will help you two defeat the monster. Now, if you'll excuse me, I'll go back to my place in the universe and protect it from darkness.

Arceus disappeared.

Kitty: C'mon, Dudley! We got a monster to get rid of!

Dudley: Right!

They dissapeared too, back to the real world.

With the help of Arceus, our heroes got what they need to get revenge on Giga Bowser.
Will they succeed? Find out in the next exciting part!

TO BE CONTINUED...

(A/N: I know, this is T.U.F.F. Puppy-Mario crossover fanfic, but I'll call the Arceus part a "Pokemon reference". Also, I got the sub-concious part from watching many cartoons and animes. Also, I put Arceus there because it's the most powerful creature Nintendo ever created, even though it's not part of the Mario universe (it's a GOD Pokemon). Anyway, Chapter 5 is up next!)