Great Undertale song but sorta inacurate in the sounds.

Good but not

That one high pitch sound effect is way too high and it has a lot of high-end, which doesn't sound very pleasing to the ear. The bass line at the drop is also way too loud, and the drop might need some drums. After all, I would call this a remake instead of remix, since there is really no new variety you've added. Fix these and you'll have a decent sounding remake. Nice job.