This may not be the highest quality, but it is the best on the forum until someone rips a proper complete and perfect quality rip you folks are so fond of.

Platform: 3DS
Year: 2013

Link (http://www.mediafire.com/download/5jjtzj7qe8xhk23/Mario_Party_-_Island_Tour.zip)

Here's a link to my other Mario Party soundtracks right here (http://forums.ffshrine.org/f72/ultimate-mario-party-soundtracks-thread-%5Bmp3-vbr%5D-173661/#post2666604) also my signature has links to a thread of all my other soundtracks. I update that thread with each new soundtrack I share. Enjoy everyone!

*Disclaimer* I would like to give credit when it is due, but I have no idea who originally ripped these soundtracks. So this disclaimer is to let anyone who may care that most of these are not mine. It is also to collectively give credit to whomever may have originally ripped these fantastic soundtracks. Again, I in no way claim these to be my own, I am just uploading them here, because I felt the need to share them, Thanks!

I can confirm, it is IMPOSSIBLE to get a "good quality full rip of this game". The only way of getting the music is from the sound tests.

The music is sequenced, and not streamed. Therefore, you can not simply rip the music from the ROM.

Not impossible. Just hard to do or to figure out.

I actually have the entire game rip.... but it's a bit messed up. It's all in MIDI, with the correct soundfont... and some of them don't play at the correct speed.
Here's some examples of the MIDIs with the soundfonts:
https://www.youtube.com/watch?v=652DWf7jQFQ
https://www.youtube.com/watch?v=6e_pzHEtwS8 (I added a reverb effect to this, because it sounded to 'in a tiny closet'.
https://www.youtube.com/watch?v=1BxPqqL9BAg
https://www.youtube.com/watch?v=N7dofVNi9gc
https://www.youtube.com/watch?v=96vLAIrsxN8
https://www.youtube.com/watch?v=kLQf2qQgBwM

And because it's a MIDI, you can, if you want, and knew how, even make slight alterations. An example of what purpose that would be, is, take Mario Kart 8's OST for example. Notice how 3DS Music Park, DS Tick Tock Clock and Bone-Dry Dunes, all end (as in, don't fade-out)? You could for example, edit it, so that a tune that normally loops, does the regular "two loops" thing, but instead of starting to play a third loop, where it fades out, you could edit the end of the second loop, to make it have an ending.

Or... if you have nothing to do, one day, make extended arrangements, like this: https://www.youtube.com/watch?v=mK7N4bdTsLA

(Of course you don't have to, I'm just saying you can)

cool.