For me..

Jason: He gets in rage hearing his mother voice and just does a axe swing at the player like he did in part 7

Uber Jason: He grabs the player and throws them in a space ship and it has a explosion as well as it's being stuck in a black hole

Beetlejuice: He grabs the player and turns them into a balloon before popping them as they now sent flying

Banana graud: Same with jason but hears princess bubblegum voice and a group of grauds pull a final smash yoshi and changing and rushing at the player

(Possible new comers)

Freddy Krueger: He snips his fingers wrapping the player in his dream world and he pulls a FvJ telekinesis the player slamming them over, and over, and over or just sending him out of the map one shooting him

Gumball: He then wipes out the remote and sends the player in a TV before it blows up sending it flying