The newest 'Smash Bros. Ultimate' character is a stylish guest star from a PlayStation game. Here's what you need to know about Joker.

Joker is the code name of the "Persona 5" protagonist. Because "Persona 5" players can name the character whatever they like, the Joker code name became an easy way for fans to reference him.

He begins "Persona 5" as a transfer student at Shujin Academy, but eventually becomes the leader of a group called the Phantom Thieves of Hearts. "Persona 5" takes players through the daily adventures of Phantom Thieves; the group combats injustice by changing the hearts of evil adults.

Joker and the other Phantom Thieves can summon Personas, physical manifestations of their inner personality. In "Super Smash Bros. Ultimate" Joker summons Arsene, his primary partner in "Persona 5."

Arsene can be summoned when Joker's Rebellion Gauge, the meter above his health percentage, reaches max capacity. Once summoned, Arsene enhances Joker's attacks and gives him a few new moves for about 30 seconds. Since he's a spiritual being, Arsene is invulnerable to attacks.

Joker can repeatedly fire his gun on the ground or in the air by tapping or holding the special attack button. You can also dodge while using the Gun, and drift left or right when firing in the air.

Joker's Up+Special move launches a grappling hook that helps him get back to the stage. Like other tether abilities, the grappling hook lets Joker hang below the stage, and it can also be used to pull enemies closer.

Joker's side special is Eiha, a dark magic spell that damages enemies over a few seconds. Eiha will linger on the ground if it doesn't hit an enemy, creating a trap. A direct hit with Eiha does about 13% damage, while the trap version does closer to 20%.

When using his Down+Special, Rebel's Guard, Joker reduces all incoming damage by half and greatly increases the recharge rate of the Rebellion Gauge. Once the Rebellion Gauge is full Joker can summon Arsene, so wise use of Rebel's Guard will be key to unlocking Joker's strengths.

With Joker's persona summoned you'll notice some changes to his special moves:
-The Gun will fire three bullets with each press of the button.
-Grappling hook is replaced with a move called Wings of Rebellion.
-Eiha becomes Eigaon, a similar spell that causes an explosion on impact.
-Rebel's Guard becomes a dual counter, Tetrakarn/Makarakarn.

Normal attacks will also do slightly more damage and some have special properties when Arsene is active. For example, Down+Attack in the air can spike opponents downward when Joker's persona is summoned.

Wings of Rebellion replaces Joker's grappling hook once Arsene is summoned. The move is one of the highest flying recovery specials in the game, but you can't hit enemies with it. Luckily, Joker is invincible for a short time when using Wings of Rebellion.