“Sono me wa dare no me?”
Itou Kanako first caught my attention with the Myself;Yourself anime ED, Kimi to Yozora to Sakamichi to, and has managed to always draw an interested eye ever since. And when that artist does three different openings for the same franchise, as in the case of Chaos;Head, we get something like this:
PC Version: Find the Blue
Mysterious with low-key tension. It builds up to the chorus, and holds the listener there before letting them down calmly at the end.
Anime Version: F.D.D.
An attempt to be edgy accompanied by a rushed and uninteresting beat and doesn’t actually go anywhere. Much like the anime.
Xbox 360 Version: fake me
Catchy and with a quick beat right from the start. It starts off with energy and maintains it throughout. At least, it does so far.
It’s amusing to analyze the artist’s feelings and approach with respect to each version. While they’re all from the same franchise, each has a unique tone to its own that is representative of the rendition its portraying.
Or perhaps this was all just an excuse for me to post fake me somewhere, as it’s been stuck in my head for the past week.
LosslessONE 
I thought the same. As for the noah op, the only reason I found the 3rd song was from a chaos;head noah advertisement bus in akihabara.