Welcome to Chapter 2. To answer a question posed to me about physical descriptions, the humans are supposed to represent Miis, so you're supposed to imagine them anyway you want, because you can make Miis anyway you want. Back to the story.
"The humans have been evacuated to Dr. Mario's on-site hospital. Now, let's get back to the action with our first fight, which is between two rival nations. The true tournament veteran from the Mushroom Kingdom, Mario! And, he proved himself last time by saving the world. From the Acorn Kingdom, Sonic!"
"Where are we?" asked Celia as the others woke up.
"Why do I have a cannon on my arm, and how did you talk me into doing this?"
"Well, I'm happy." Nathan said. "I have a sword, and invention 241 worked again."
"First thing first," Mark responded.
"Do you still have your retrievers?"
"Yes." Nathan and Celia answered.
"Well, then... if we're here and not in an earth hospital, Dr. Mario should be looking after us. Dr. Mario!" Mark shouted.
"It's a me, Dr. Mario!" Dr. Mario replied.
"Do a you three have a virus, or did you all just pass out?"
"We just passed out, so no, we don't need Megavitamins." Celia told him. "Is that a tournament going on outside or something?"
"Yes, it is-a. The fourth one. Let's-a get you out to watch."
They got outside and started watching the fighting. Villager and Mega Man were now facing off. "This battle is between two newcomers. Who will win?" Monita announced.
Mario, Link, and Samus came up to the three humans.
"If-a you three want mentors in this world, we can help. You-a with the sword, you would be with Link-a. And you with the cannon, you would be with Samus." Mario told them.
"But I'm not taking a wimp. Tell us your personalities." Samus asked them.
"Well, I'm Mark. I guess I would work with you, Mario. I like inventing things, and I'm plenty smart." Mark said to Mario.
"I'm Nathan. Nice to meet you, Link. I like trying new things, and I usually like them, too. I'm also athletic." Nathan told Link.
"Hi, I'm Celia. I approach everything with a scientific angle, and know practically everything about this world." Celia said to Samus.
The three Smashers conferred for a moment, and then decided.
"The three of us talked- well, except for Link, who just yelled "HYAH!", but we decided that we'd take you on as protégés. But our training's tough." Samus said to the humans.
"Well, can we get to training yet?" Nathan asked.
Link shook his head and gestured his sword at the fight, where Villager had just beaten Mega Man by sending a fully charged Charge Shot back at him.
"Oh, watch the fights. O.K."
Suddenly, however, a shape cast a shadow over the battlefield.
"What's Ridley doing here?" Samus asked.
"Come on Celia, we have to fight."
"Hold it!" Celia yelled. "Ridley's holding a Subspace Bomb!"
I'm sorry if this chapter was mostly talking, but I need to get through the talking parts to get to the good parts, so I hope you'll excuse me. Also, invention 241s are completely fictional, so, sadly, you can't really go into Smash. But it's just a fanfic, you should really just relax. Until next time!
