Best song ever in a video game?

Question

Usually, a good video game has a good soundtrack. So this question is to find the best song ever in a video game. I've narrowed it down to the best five, all covering different genres and different franchises.

Vote which one is the best!!!

The first nominee is Encounter from Metal Gear Solid.

http://www.youtube.com/watch?v=vnQRWJ7bIhs

The second nominee is Gerudo Valley from Ocarina of Time

http://www.youtube.com/watch?v=h_bwHlDD9Nc

The third nominee is Sanctuary from Kingdom Hearts 2

http://www.youtube.com/watch?v=nbnD7sVCBOE

The forth nominee is Twinkle Park from Sonic Adventure

http://www.youtube.com/watch?v=TFELeJaZlPQ

The final nominee is Koopa Bros. Theme from Paper Mario

http://www.youtube.com/watch?v=gNZq_0kvtxk

Cast your vote. Which one is number one?

Answer 1

Encounter is actually pretty good, I vote for that one.

IMO, the best songs from video games are Tetris A, Mario Bros World 1-1 theme, Halo 1,2 and 3 main themes (<3 Martin O'Donnell), and the theme songs from the Devil May Cry series.

Answer 2

Encounter from Metal Gear Solid, doesn't sound childish and has a good beat.