The way that the dance battles worked were that one person went against another person.

First Battle:

MTT and Papyrus

Papyrus went first, and did this dance 

https://m.youtube.com/watch?v=D6vJM5VwqGQ

(Sorry, Wattpad won't allow me to put any of the links in for some reason! It kept on glitching!)

And then MTT went and did this dance

https://m.youtube.com/watch?v=Hhbqmpk0MoY

MTT won.

Second Battle:

Napstablook and Monster Kid

Napstablook went first, and did this dance

https://m.youtube.com/watch?v=JLFvYi5WUUc

(Napstablook has been given a body like MTT's by Alphys)

And then Monster Kid went and did this dance

https://m.youtube.com/watch?v=pZtudc-3nlg

Monster Kid won.

Third Battle:

Alphys and Undyne

Undyne went first, and did this dance

https://m.youtube.com/watch?v=u1hIc_0eS-g

And then Alphys went, and did this dance

https://m.youtube.com/watch?v=b7qrcwZ5FtM

(But less ballet-ish)

Alphys won.

Fourth Battle:

Asgore and Toriel

Toriel went first, and did a waltz type dance.

Asgore then went, and did a waltz type dance as well.

Asgore won.

Fifth Battle:

Frisk and Muffet

Muffet went first and did this dance

https://m.youtube.com/watch?v=NAEHObPrCtk

(Just, to Spider Dance, and without tap shoes)

And then Frisk went, and did this dance

https://m.youtube.com/watch?v=BCrZsbbXW9Q

Frisk won.

Sixth Battle:

Sans and Y/N

Which will be in the next chapter. MWAHAHAHA!