I was very familiar with Simple and Clean. Rising Sun did a remix of it in rock, and I liked it. Though, the song didn't really have a connection to the game, it was a good song. ovo

Hikari's lyrics piques my curiosity. When and where did the game hold one lousy television? xD They have lots of computers, lots of shiny random buttons, lots of shiny random buttons on advanced computers, leading to a cyberspace with MORE shiny buttons and gizmos, and finally, some shiny buttons leading to a virtual town with broken screens.
But do they have a television? Nooooooo. Not one screen showing a cheesy comercial, either.

Sanctuary has very little ref to the game. You know, watching while he's sleeping?

I'd say my best vote is Passion. Reminds me of, well, the entire KH series, and the manga. ovo