Questions in UNDERTALE

OK. FINAL DECISION. I've heard so many good things about Undertale and there's so many good fnf mods, and it seems really intresting. Should I get it? [Repost so I know what Undertale fans think]

what should i make

hey im making a battle in create your frisk but the music wont work. how do i fix it?

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https://gamejolt.com/p/dust-nico-and-cata-all-phases-voten-al-si…

Can anyone recommended me any undertale au's i should play? i'm bored.

Looking back at my cringy undertale comments says alot. You have any cringe comments you posted before? (it could also be a non undertale one)

Who's better?
Sans
Undyne
Toriel
Papyrus
Asriel

Those are the main characters in this question, if you want to choose other characters such as: Chara, Asgore, Gaster, etc, that is fine too.

Who would you rather fight against and why?

But im actually thinking about going in the meme section should i?