War for existence

When Twilight opened the portal to the next universe, all of the forces stumbled through into a city filled with ghosts.

"Where are we" asked Dreambert

"This place is terrifying, and I'm the King of nightmares" said Antasma.

Soon they saw a weird car heading towards them ,and it almost hit them before it stopped. The people inside the car got out and were puzzled at the various creatures in front of them.

"What are you creatures?" asked one of them

"I'm Twilight Sparkle, this is Applejack, Rarity, Rainbow dash, Fluttershy, Pinkie pie, and the heroes and villains from the world we were just in. We have come seeking help from different universes to stop a villain threatening all existence."

"Sorry, but we can't help. We protect this city from ghosts and are always busy collecting them."

"Excuse me for a second." said Twilight. She used her magic to amplify her voice to call all the ghosts to their location. "Attention spirits, we require your assistance, the fate of this universe and all other universes is at stake. Join us, and you'll be free to return safely. Decline, and you will soon perish into nothing."

This got the attention of all the ghosts in the city, they quickly rushed over to the group.

"We would like to aid you in your fight." said the green ghost.

"Perfect" said Twilight. "I hope that you'll assist us as well." she said to the humans.

"Of, course. You managed to sway all the spirits to join you."

"Great. Now let's head to the next universe." said Twilight, firing the portal device.