The fight you have all been waiting for I'm sure, the music is a Death by Glamour remix that I will link to in the Ao3 posting of this chapter.
"Did you just flip my switch?" asked Mettaton
Zane was hiding in the shadows, in his glitter outfit with a microphone in one hand and shurikens in the other.
The smoke cleared and Frisk found themselves facing a very Animeesque robot dancing and posing. They could almost hear the cheers rising up from around the underground.
"Now now Darling, you can't have this spotlight all to yourself," came a voice.
Zane strutted into view in a cloud of snowflakes.
Frisk checked who this new monster was.
*Mettaton's husband and Co-star.
"We are the idols everyone craves, time to dance little one," he said
He spun into a white tornado, flinging shurikens at Frisk.
Frisk shot them with their phone but then had to dodge Mettaton mini bots.
Frisk posed during their turn and the ratings went up.
The monster in white smiled at the camera, glitter flashed blue and orange and Frik avoided the lasers from the smile.
"Now darling, what's a dance fight without a few leaps?" asked Zane
Frisk's heart turned blue and they had to jump over spinning snowflakes as Mettaton and his husband seemed to recreate the lift scene from an old movie.
The fight got harder and they had to drink a starfait, the audience loved the brand.
"Oh my love it's my turn now, Darling you've shown us your heart now how about I show you mine?" said Mettaton
Frisk shot at the heart, then had to stand still as a light blue tornado flashed over them, then they turned dark blue again and had to jump over another tornado.
"Have fun with that on-screen keyboard darling," said Zane
*Legs
"Oh yes, legs were the correct answer darling, now what is your favorite thing about my husband? No need to an essay, just say it.
Frisk had several options. Smile, hair, outfit, eyes.
*smile
"Yes I'm quite fond of his wonderful mouth myself," grinned Mettaton
Frisk had an item in their inventory from exploring the pink house next to Napstablook's, they showed it on their turn.
"W-where did you get that?" asked Mettaton
*Mettaton is speechless at the image. You didn't realize it was a photo of his husband in a pose without clothes. You're disgusted, the ratings seem to rise though.
"My my, your friends never mentioned you broke into people's homes to snoop around, looks like you need to be taught a lesson," said Mettaton's husband grabbing the picture from their hands and putting it in his pocket.
*Mettaton's husband is mad, his attack increased
Blue tornado, white tornado, flashing smile, dodge the snowflakes and Mettaton's heart shooting lighting at them. Frisk didn't have time to even breathe.
They relaxed slightly when the disco ball appeared, at least that was an easy attack,
Before it was followed by bombs.
Suddenly Mettaton's legs exploded off.
His husband looked shocked and rushed to him.
"I'm fine dear, let's finish this!"
Frisk was down to their last glamburger.
"Oh look at these ratings! Let's take a caller before we take your soul," said Mettaton
His husband looked concerned, Mettaton's batteries were running out.
People were begging Mettaton not to go.
His husband was holding him close, trying not to glare at Frisk as the audience called in.
Alphys came in, she could see Zane was going to have words with her later.
"It's just the batteries, I'll fix him," she muttered
"You'd better," said Zane
Alphys showed Frisk to the elevator,
…
The monsters told the tale of the underground, then the tale of Zane, the one who brought them more hope than ever before, if Asgore couldn't save them then they were sure Zane could.
Sans believed they would do the right thing. But then, the monster in white that they had just faced, came into the room.
"As much as it pain's me to do this, I have to, I had hoped my husband would be able to take you out leaving my hands blood-free but it looks like I now have to spare Asgore from this," he said. He was wearing his royal attire now, no more glitter and microphone.
Sans stepped to the side.
Frisk checked him once more.
*Zane, heir of the underground, husband of Mettaton, general of the royal guard, assistant to Alphys, the last hope of monsters. A hero from another world.