Well, would you look at the first DLC fighter! Coming straight from Persona 5, it's Ren Amamiya, better known as Joker!

I'm gonna be honest, I've never played a Persona game.

The Game Awards, 2018...

"This is Joker, I've infiltrated the theater."

Ren Amamiya, better known as Joker, the leader of the vigilante group known as the Phantom Thieves, was tasked with a mission which specifically said that only he and only he alone could partake in: infiltrate the Game Awards show and steal a valuable treasure. Currently, the theater was in a state of confusion because of their hijacking of the presentation.

Over his comlink, he heard Ryuji exclaim, "Wait, seriously? He went alone to the Game Awards?!"

Ann interjected with, "But it's so far away, why is he there?"

Morgana joined in, saying, "There's only one thing that the Phantom Thieves specialize in..."

Yusuke finished with, "...He's there to steal a treasure! Have you already sent a calling card?"

Morgana continued, proclaiming, "We're not the ones sending a card this time! In fact, we've been invited. Invited to steal the greatest treasure of all!"

The three of them kept a close eye on Joker to warn him of any security that were nearby. Joker, meanwhile, had found what he was looking for: a small black box. Opening it, he saw an envelope with a wax seal on it that looked like something he had once seen on TV with the others. Joker let out a breath of disbelief, saying, "No way..."

Ryuji butted in, saying, "What did you get, man? Show it to us!"

Joker, with a small smirk, said, "Okay, but promise me you won't scream when you see it."

Joker lifted up his prize, and Ann let out a shrill scream of, "WHHAAAAAAT?!"

Ryuji, in shock, exclaimed, "The Smash Bros. tournament?! Is this for real?! There's no fucking way this is real! Morgana, please pinch me so I can find out if I'm awake or not!"

Morgana obliged all too willingly, before excitedly saying, "We'll be going against some of the best fighters known to the world! Mario, the living legend! Link, a hero whose legacy spans generations! Samus, the bounty hunter extraordinaire! Can't wait for our fearless leader to show his stuff!"

Later...

After a celebratory dinner (accompanied by Ryuji pretending to Falcon Punch everything in sight), Joker retreated to his quarters to pack and prepare for the tournament. Taking off his mask, his eyes became shrouded in blue fire as he called out, "Persona!"

Arsene appeared behind him in a blaze of blue fire. The Persona uttered, "I am thou, thou art I. Show the strength of my will, and RAGE AGAINST ALL CHALLENGERS!"

With his invite in hand, a dark portal opened up, and Joker stepped through.

At the Smash Mansion...

Joker arrived at the Mansion, which, like the town he had stopped at before completing his trek to the large house, was completely devoid of activity. As Joker pondered why, he saw a note, which read:

"To any and all late newcomers, please use one of the devices on your right to be transported to the Craggy Outlook. We are currently on a mission, and we don't know how long it'll be until we're back. In case you run into a Smasher, keep your envelope on you at all times, as you were not present at the Newcomer Ceremony, and as such, the Smashers may mistake you for an enemy."

Joker took one of the five devices on the table, and pushed the little black button.

The Craggy Outlook...

Joker arrived at the destination, and saw a large, blinding dimensional rift in front of him. Throwing caution to the wind, he jumped in.

The World of Light...

Joker landed in a location that resembled Paris, except with multiple small creatures that he remembered were called 'Pokémon.' In the distance, he heard a chimpanzee screeching, and immediately hid.

I'm really bad at keeping promises, aren't I?