Topic: How easy is it to recreate or clean up a song?

[JonLeung]

I know there are some techy guys out there, I wonder if you guys would know anything about music extracting, recreating, or cleaning up.

There are two songs I would like tidied-up versions of, but there are other sounds that get in the way, and no full version exists that I know of.  Anyone have the ability to extract, edit or remake these?

Just Dance 4 - Just Sweat - Aerobics In Space (Intense)
https://www.youtube.com/watch?v=p1OPHiNzefI&t=6m13s
- from 6:13 to 7:50
- could it somehow be extracted from the Wii ISO?

Just Dance 2018 - Double Rumble - Sports 'Til I Drop
https://www.youtube.com/watch?v=N8dV092VKKI&t=13s
- it's actually a longer version of the previous song
- could it somehow be extracted from the Wii ISO?
- but it would need to be cleaned up as the "sports" sound effects may be part of the audio

HIGH SCHOOL DANCE BATTLE - CHEERLEADERS VS BALLERS! // @ScottDW
https://www.youtube.com/watch?v=8mt3tlZzrIQ&t=1m30s
- from 1:30 to 3:06
- (if you're curious, that's a 360 degree video, so you either move your tablet/phone, use the WASD keys or click and drag to look around)
- doesn't seem like ScottDW will be releasing a full version?  All his music is free to use in YouTube anyway...

I know it's unlikely, but I might as well put this out there...

Thanks in advance!