This trailer is rendered in a 2D anime/manga/comic book artstyle, most notably with characters being represented by multiple still images of various poses.
Joker wakes up, finding himself lying on the ground in Shibuya's Scramble Crossing and clad in his school uniform.
People are walking around him, but nobody can see him.
After a few moments, Joker sees a strange sight--red-and-black symbols, resembling a cross between a skull and the Smash Ball, floating in midair.
The symbols warp, transforming into bizarre, off-color, jagged versions of Smash fighters. Joker is taken aback; no one else seems to notice.
The fake fighters start to attack, and Joker is only narrowly able to dodge.
In desperation, Joker reaches to his glasses to try and unmask, but someone calls out. Joker turns to see someone running towards him, a figure in purple.
The figure leaps over Joker's head and summons fire in front of his hand, lashing it out at the fake fighters, causing them to explode into TV static and disappear.
The figure turns to Joker.
Neku Makes Some Noise!
<insert random gameplay, showing off Neku's flashy elemental and psychokinetic attacks, as well as his stage, which goes from the Scramble Crossing to a mural in Udagawa to an ominous underground bar with static effects; Twister plays>
Super Smash Bros. Ultimate x The World Ends With You