Sorry, but I'm still firmly rooting for Heihachi and Jill.
"Clash of Thunder"
Incineroar makes quick work of Villager, Bowser Jr., and King K. Rool, and then Pikachu (preferably Libre) jumps into the ring. After the two fight for a bit, Pikachu emerges victorious, and as it celebrates, someone else drops down into the ring. The camera pans up to reveal Heihachi as he begins charging electricity. Pikachu stores up electricity and the two rush at each other.
"Survival Horror"
Luigi frantically runs out of Dracula's Castle and through a forest before coming upon a mansion in a clearing. He cautiously enters the mansion and a zombie appears, and he fires a plunger at it just like he did to the mummy. The plunger is ineffective, but the zombie is suddenly blasted away with an explosive, and the camera pans around to reveal Jill standing behind Luigi with a grenade launcher.