For the disclaimer/summary, refer to chapter 1 and for the randomness/weirdness warning refer to chapter 2. On to the story!

At Super Smash Brothers Base(its initials are not to be confused with the game Super Smash Brothers Brawl), which is the place where all the smashers go when they're not fighting(or they are going to), Mario is talking to Link and Pikachu.

"Hey…uh…anyone-a seen Kirby?"

"Nope." Link answers.

"Pikk-pi. (Nowhere)" Pikachu says.

Then, Kirby taps Mario on the shoulder.

"Oh, he-a was just-a getting the mail." Mario says.

Mario takes the parcel from Kirby, and then Falco and Mewtwo notice it.

"Hey, whatcha got there?" Falco asks.

"Let's find out." Mewtwo says, and telekinetically brings the package to himself. He opens the brown paper covering it, and finds a box. It looks like a shoe box, but without the logos. When he opens it, he finds a letter in a bottle surrounded by cotton.

"Hmm, interesting." Mewtwo says. He reads it,

"'Dear Smashers of the SSBB,

If this is someone other than the mentioned above, please put this message back in this bottle, cork it, and obliterate it. If this reader is one of the mentioned above, I am glad you have received this note. I am inviting you to a party at my mansion. It will have music, dancing, food, and much more. However, as this destination is quite far away(I know how far some of you have traveled, but this is actually in a whole other world) I have provided a source of transportation. All you need to do is say the word "Onuuke" and you will find out the rest. I cannot reveal any more, as the information in the wrong hands will do more than give them knowledge. I wish you luck.

-Ryuu Onuuke'"

Everyone says, "Hmmm…" Except Pikachu, who scratches behind his ear.

Ness comes in, and sees everyone huddled over that note.

"OOH! OOH! What's THAT!" Ness excitedly says.

"Well, it says 'Smashers of the SSBB', so I guess that includes Ness, too." Mewtwo says.

Mario gives the note to Ness, who reads it.

"…So Onuuke, huh? Well what ABOUT him, then?" Ness says, and as soon as he does, a vortex with all the visible-color-spectrum-colors opens, about a little bigger than Bowser.

"COOOL!" Ness literally leaps in.

Falco shrugs and runs in. Mario thinks about it, then looks at Mewtwo. …Which really doesn't do anything. He does his famous "Mario-jump" in.

'Hmmmmmm…' Mewtwo thinks, 'this portal must close when everyone is in, right? But it must have some sort of mechanism to tell if someone doesn't go, so it can make an exception. Interesting…there must be others like this, if you would actually need a PORTAL to go there.'

Pichu comes along.

"Pichu, Pi-pichu! (Hi, Mewtwo!)" Pichu says. "Pichu chu-chu-pichu? (What's with the big, swirly thing?)"

Mewtwo tells Pichu what just happened.

"Chuuu! (Yaaay!) " Pichu runs in.

Mewtwo rubs his forehead. 'What a child,' Mewtwo thinks. He decides to tell everyone about the portal. Everyone but Gannondorf and Donkey Kong come in…G and DK are in an avid chess battle, and have not stopped playing for 13 hours(they keep declaring re-matches). Mewtwo is extremely disappointed that ANYONE would lose even ONCE to a monkey. He goes into the portal, and it closes.

At Hollow Bastion Sora, Donald, and Goofy are visiting Cid and Leon and the rest. Well, right now, they're walking to that house. When they get there, Cid stands up.

"Perfect timing," He says.

"What?" Sora says.

Cid holds up a disk and says, "I just got this today. A person was just walking along and…gave it to me. His name was something like "Dragon". Anyway, we deciphered this disk, and here's what it says."

Cid puts the disk into the drive, and boots up the computer. He types for a few seconds, and a large screen appears.

"Dear Sora, Donald, Goofy, and anyone else who happens to see this,

Please make sure not to show this message to anyone else, and I am sure it is you because I hand-delivered it to Cid. I am inviting you to a party at my mansion. It will have music, dancing, food, and much more. This disk is actually an item with a keyhole allowing you to open up my world to you. I cannot reveal any more, as the information in the wrong hands will do more than give them knowledge. I wish you luck.

-Ryuu Onuuke'"

"O…kay….?" Sora says.

Cid takes the disk out, and Sora takes his keyblade out. Sora points his keyblade at the now glowing disk, and some kind of ray shoots out. Then, a magic keyhole appears. Sora does the same thing to that, too. The view switches to the world map, and it shows "Onnuke's World". Sora, Donald, Goofy, and Leon go there.

Ohh! Just remembered to tell you this:

FYI, the reason why it keeps saying "this information in the wrong hands…" is because some evil guy could use the portal system to their advantage. Thanks for reading, and please, R&R!