Can't remember much about this dream, or dreams from the same night, because I chose to write them down over twelve hours later, but I'll put down what I can recall:
I was supposedly playing a videogame, it played like Legend of Zelda: Twilight Princess, and I was even playing as Link with the boomerang, but for some reason, that detail seems trivial.
I was in this absolutely enormous underground room, with a hole in the ceiling that bathed the entire area in light. There were ruins all around and so forth. I was standing on the edge of a flat stone surface, that dropped off into a lower area (the majority of this underground area was lower than where I was).
There was an enormous creature/being that I was fighting with the boomerang, that stood in this lower area. Even though it stood in the lower area (maybe a couple hundred feet down), it still towered over me like a sky scraper (though it was a decent ways away from me)
It was essentially a series of spiny rings (about three, incredibly large) with large eyes on the ends of them, all of this sitting on a pair of stone/construct legs. My goal was to use an ice version of the boomerang, and hit the eyes.
I did so, and it transformed before my eyes into a combination between a construct humanoid, and a temple. The chest had the temple entrance. It stepped close to me, and the entrance was level with the ground I was on, and touched the part I was on, so I ran inside. Inside, it was very technological, with piles of these odd red and black glowing disk things I was supposed to collect for extra points, money, etc.
Don't remember the rest.
The first phase of the boss battle was really interesting to me, and I plan on attempting to draw it.
So yeah.
Subject: Ring-eye Colossus 
