Warning: this extension isn't actually endless, it ends at like 30 minutes, sorry for the clickbait but thanks for the free views haha yes (?)
The first (and so far only) actual reward for 100%ing a game other than "oh lol you actually did it, congrats I guess", and one I put a lot of hours into when I finally got it, this song felt like a triumph one celebrating that I finally got that damn Remix 10 lel. It does sound a bit creepy and mysterious, especially the intro and the constant cowbell, but I think it fits considering it's like a super secret reward that not many people will actually listen to ingame. No wonder they kind of reused the melody in Songbird lel, can't blame 'em.
♪ Composed by: Nintendo (Masami Yone, Shinji Ushiroda, Asuka Ito) ♪
DISCLAIMER: I own nothing featured in this video. All the copyright goes to Tsunku♂, Nintendo and TNX.