Suggestions by @joshuapanz

Pete (Mickey Mouse Clubhouse)

as Bowser in Disney championship

Minnie Mouse

as Peach in Disney championship

Princess Aurora/Briar Rose (Sleeping Beauty)

as JigglyPuff in Disney championship

Chicken Little

as Ness in Disney championship

Tiana (Disney)

as Kirby in Disney championship

Stitch

as Fox in Disney championship

Donald Duck

as Yoshi in Disney championship

Goofy (Mickey Mouse Clubhouse Design)

as Luigi in Disney championship

Lightning McQueen

as Captain Falcon in Disney championship

Thor (Marvel’s Avengers)

as Pikachu in Disney championship

Elsa (Disney)

as Samus Aran in Disney championship

Hawkeye

as Link in Disney championship

Wreck-It Ralph

as Donkey Kong in Disney championship

Mickey Mouse (Mickey Mouse Clubhouse)

as Mario in Disney championship

Anna (Disney)

as Princess Daisy in Disney Smash Bros

Rapunzel (Tangled)

as Princess Zelda in Disney Smash Bros

Gaston (Disney Heroes: Battle Mode)

as Captain Falcon in Disney Smash Bros

Lighting McQueen

as Captain Falcon in Disney Smash Bros

Captain America (Chris Evans)

as Captain Falcon in Disney Smash Bros

Li Shang (Mulan)

as Ike in Disney Smash Bros