One day, Bowser was trying to think of a new plan to defeat the Mario Brothers when...

Bowser: I could steal the... I already did that! I could fly in my... no, that didn't work either. I could sit in a giant flying bathtub and... WHY DID I DO THAT?

Bowser was very angry.

Bowser: I'M VERY ANGRY!

Yeah, so he decided...

Bowser: I need a vacation. I can't think of any plans; Iggy is really getting on my nerves, demanding that I buy him new glasses every time he breaks them; and I'm turning into a crabby old grouch.

So he summoned his most trustworthy Koopas...

Bowser: Now, I have a very important job for each of you. I'm going on vacation, so I need each of you to watch over one of my castles.

Roy: Which one do I get?

Bowser: Larry will get my Superstar Saga castle.

Larry: How do you know what games these were in?

Bowser: I read Nintendo Power... ANYWAY, Morton will get the Super Mario RPG Keep.

Morton: Will a giant, great, huge...

Bowser: I DON'T CARE! Anyway, Wendy can have Castle 8-4.

Wendy: Why do I get the classic?

Bowser: So you don't whine when the other castles don't have a pool. Iggy can have the Partners in Time castle.

Iggy: YAY!

Bowser: Roy will take my flying bathtub...

Roy: A BATHTUB?!

Bowser: It's in the sky, isn't it? Anyway, Lemmy can take the Endless Stairs.

Lemmy: Can I freeze them?

Bowser: Sure. Anyway, Ludwig can take Dark World Castle.

Ludwig: YAY!

Bowser: Kamek will take the New Super Castle.

Kamek: YAHOO!

Bowser: Wart can have his castle.

Wart: Well, I wasted a trip here...

Bowser: NO, stay for a while. Anyway, Kammy can take Paper Castle, and Bowser Jr. can have the Valley of Bowser. Now, those who have their castle not wrecked will NOT be sued and sent to the dungeon when I get back. DISMISSED!

Most of the Koopas were happy with their castles. However, most of them had troubles. In one, a giant sword crashed through the roof and the Koopa in charge was brainwashed by a robot alien. In another, the castle kept spinning and the Koopa running it was crushed by several Thwomps and hit a switch which made them all (and the castle) fall in lava. One was swimming and got sucked up by a Blooper into a Firebar. The Bloopers soon destroyed the castle. One put his bed and the support beam to the castle on a classic arena, but fell into a dark abyss after jumping on it, the castle going along with him.

Another did what he always did, but accidentally freed some fairies that defeated him and reduced the castle to rubble. One was caught by Peach and slid down into the dungeon, destroying what his area was in the process. One was attacked by a bean that destroyed his castle. One went to the arena that she created, but it malfunctioned and blew up the castle... AGAIN!

The people remaining decided to trade places. However, the one who got the castle in the past trashed it, and sent the person who owned it back there very forcefully. He came back to his place and kicked the one lounging in it away, which set off the Mechakoopas in his original place and drove it further into the ground. However, one Koopaling regained his mind and threw away the thing that made his castle wrecked and fixed the damage it caused. That thing hit the one place that hadn't been ruined yet and... well, ruined it!

Bowser returned home the next day...

Bowser: Well, you won. Your place isn't totaled, so no dungeon for you!

???: YAY!

Bowser looked at another Koopa.

Bowser: Since YOU or one of the people in your castle didn't wreck your place and you WEREN'T one of the reasons I left, you don't go to the dungeon either.

???: YES!