It is a half-decent day in the Koopa Castle. Roy hasn't beat up Iggy yet, Ludwig hasn't made an invention with stupid results, and Bowser hasn't taken out his rage on the Koopalings yet. Everything is so peaceful until...

Morton: You know, it's too peaceful today. Roy hasn't beaten up Iggy yet, Ludwig hasn't made a goofy, unnecessary invention that would put us all in doom and danger, and King Dad hasn't taken all of his rage and fury out on us. We should do something!

A Boomerang Brother enters the room.

Larry: Hey Boomer! How's it going!

Boomer: Not good... I have terrible news!

Iggy: What is it?

Boomer: Remember how Mario took out Bowser in The Valley of Bowser?

Roy: Nope!

Boomer: Then I'll show you this flashback...

Mario: Mamamia! Peach, I'm coming!

Bowser: There's no way you can beat me while I'm in my Clown Copter! Now hold still while I throw these little mechanical Koopas at you.

Mario runs idiotically until one of the Mechakoopas explode in midair!

Mario: Pretty fireworks!

Mario randomly throws all of the Mechakoopas up, and they somehow all hit Bowser!

Bowser: NOOOOOOO!!!

Peach: Mario!

Mario: Peach!

End of flashback…

Roy: Still nothing!

Boomer: Anyway, Luigi and Peach have made a giant supply of Mechakoopas and are planning on taking out Koopa Castle!

Koopalings: GASP!

Boomer: Just decided to tell you of our destruction. Boom Boom Fortress has already been destroyed. The Mario Gang should be here by 2:05 tomorrow afternoon. Well, goodbye!

Boomer leaves the room.

Roy: We're doomed! Iggy, hold still as I give you your final beating!

Iggy: I'll cherish the moment!

Ludwig: Wait! We should sabotage our explosive undertakers before they explode our abode.

Everyone looks at Lemmy...

Lemmy: Ludwig said we should blow up Mario!

Koopalings: YEAH!

Ludwig: Tonight, we attack.

Koopalings: YEAH!

Lemmy: And, we should get one thing we want from every person!

Koopalings: YEAH!

Bowser, Kamek, Susan, Clawdia, Kammy, Wart, and Boom Boom: We want in, too!

Koopalings: Yeah?

Ludwig: Fine, whoever can defeat the Mario Gang or blow up the Mechakoopas first gets whatever they want from the rest of the competitors.

Lemmy: Ludwig said-

Wendy: We UNDERSTOOD him this time.

Lemmy: Oh...

At the Mario Camp at bedtime...

Mario: PARTY!

Luigi: Hi-YAH!

Luigi hits Mario with a Green Missile attack, knocking him out.

Peach: Thank you.

Yoshi: YOSHI!

That night, the Koopas all sneak into Mario's Camp. One Koopa tries to use their well-known magic to shrink the Mechakoopas, but is stopped by a fist. The new attacker just decides to fly and maul the Mario Brothers, but is frozen solid by a fairly intelligent Koopa.

The new attacker tries to freeze up the Mechakoopas, but someone behind him burns his mode of transportation. Without it, the little Koopa stumbles home. The fire Koopa goes to his ultimate revenge scheme: drop the Marios in a pool of lava by putting them on top of a bridge and cutting a rope at the end. But he is stopped by a flying crown. She passes the body of her victim and says, "Sorry, honey" and is about to suffocate Peach, but is paralyzed by some sort of weird machine.

The mechanical maniac aims his gadget at the Mechakoopas, but is beaten to a pulp by one of his own brothers. The frenzied Koopa decides to just hit the Mechakoopas, but before he can, a yellow block drops on his head. The "beautiful" new attacker is going to do the same to the Mario Bros, but is locked into a glass dome by a gray-masked Koopa and almost becomes deaf. The loudmouth puts a megaphone to his lips, but is eaten by a plant. The Koopa prepares his attack, but is scared out of his shell by another Koopa.

The "Larry scary face" readies her wand, but runs off because of a grounding threat. The grounder belches, but is drowned by a crybaby of a Koopa. The new assassin takes a Big Bertha to Mario, but is hit by a weak blast. The blast is enough to knock her out. The last remaining better is about to blow up the whole camp, but wakes up the person who forgot to beat him up today. They go outside the camp for a harsh, painful beating. This wakes up the smartest person in the room who can hear it, and Queen Koopa. They fight, which wakes up the rest of the Koopas there, who all get into a big fight. Then, the first Koopa to leave the camp comes back and blew the Mechakoopas up.

The next day, 13 Koopas have one less thing.