For this, I would have to say the Silent Realm Guardians. They Scared the SHEIKIAH outta me!!! I'd have to say, out of all, the Silent Realm(s) was one of the most terrifying points of the game in all. Especially when the music, colors, and ambiance changed; the Guardians awoken and started CHASING you until you found the next tear, it seemed like you were running a race against your life. And if you didn't go fast enough, or your energy gauge was fully depleted, let's just say, "The Hero Shalt Not Return. Until They Start Over, For The 14th Time, And Counting."