*FFVII cloud's theme or the overworld (nice song although it makes you want to kill yourself at the end, but hey that's good too)
*FFIV cecil's theme or red wings
*FFVI the 3rd tier of the last boss (it's just creepy, and so is that boss)
*FFIV credits roll
*FFVI the floating continent (the first time I heard this one, it scared me, I dont know why)