The manual of my used copy of Metal Gear Solid has one note written: "Secret Code = Comodo Dragon.

"Stealth

"Camera"

I wish I could have told this person when it was still relevant that you unlock the camera just by beating the game once, and the stealth camouflage just by taking the Otacon route during the torture sequence. "Comodo Dragon," aside from being misspelled, isn't a code at all; it's a ranked codename based on your performance.

In other words, I have a manual with some yahoo's handwriting in it, and for nothing.