Favorite Video Game Song Or Soundtrack?

Does anyone here have a favorite song from a video game? Or even an entire soundtrack? For me, some of my favorite songs from video games has got to be Aquarium Park from Sonic Colors, the Final Boss theme from Mario and Luigi Bowser's Inside Story, and Vampire Killer from Castlevania. And for soundtracks, Super Mario Galaxy and Castlevania Dracula X Chronicles take the cake for me.

Favorite game song: Eyes on Me http://youtu.be/4qcW0oiLKHg Favorite game soundtrack: https://images-na.ssl-images-amazon.com/images/I/51GwzI8QdeL.jpg

A Fleeting Dream;Someday, the Dream Will End I liked this one in pariticular because normally, in an epic fight, they play epic battle music. But they played a really sad one during a boss battle instead. http://www.youtube.com/watch?v=-eL7DUlUB_E

I have quite a few that I think are good, in terms of bosses. Almighty persona 4 has a good introduction and conveys the reason and question why are they fighting against what is deemed to be their goal. http://youtu.be/Hj0VqBa60Sg Next up I would have to say old snake from mgs4 it's not really fast paced from the start, and basically signifies the endless cycle of rivalry snake and ocelot have initially even when severely aged and in there condition. http://youtu.be/OW4zQiyA5vI Than one more as well I really like is the other promise in kingdom Hearts when sora is fighting his other self roxas. http://youtu.be/wHRL-JfXhFQ

Warning!!! Lower volume when listening. Beware!!! The Seven String Devil Steve Vai Halo 2 Anniversary OST - Genesong (feat. Steve Vai) http://youtu.be/h6oHQhDM73w Halo 2 Anniversary OST - Halo Theme Gungnir Mix (feat. Steve Vai) http://youtu.be/L6R8fE2OU3E

The theme song of Dark Cloud of the PS2 I really like it because it feels like the moment a hero rises. https://www.youtube.com/watch?v=5gJ3qHyqCa4

http://www.youtube.com/watch?v=crEcGrcW2Xk http://www.youtube.com/watch?v=cOWRNLaCMJg And many more(zelda, etc.) But yea, all epik

Single favorite song might have to be this, although there's many others that also come to mind. https://www.youtube.com/watch?v=d3Fjivz8PuM For OS; Rez, every extend extra, mc2, amplitude and more come to mind, but I may have to go with wipeout3 https://www.youtube.com/watch?v=V974MkN7v94