this is based on a mock trailer i made aboult smash bros ultimate which you can read below.

A person can dream but this is a made up trailer idea i made.

we see a huge desert and we see a blue streak. the streak stops and we see it’s sonic the hedgehog. he looks around but then looks up at a cliff to see another hedgehog, but it’s black. it’s shadow the hedgehog.the title card appears with the echo fighter icon. shadow jumps off the cliff and lands in front of sonic. As they look at each other, they both notice a sand storm approaching. we then see the storm and then a black figure walking out of the storm. an armadillo with a cowboy hat and a leather outfit. the title then says “and introducing: dillon, the red flash!“ The trailer then shows gameplay footage of shadow and Dillon in smash matches.
a special animation appears at the end, in which dillon looks out to the sunset, then sonic rolls into shot, looks at dillon and offers him a hand shake. dillon looks at sonic’s hand and walks away. sonic, looking surprised, shrugs and runs off. the scene fades to black. sakurai appears and explains about both dillon and shadow, and reveals that customizable mii costumes based on the Animal Miis in dead heat breakers will be unlockable in the game.

models used:
dillon by ???
sonic by StarNoodle495
stage by SAB64