A great addition to an amazing story!
The gameplay in this "game" consists of a target reticle that allows the player to scan every page of the comic to find secert clues and objects which are then put in a 3-D memory building simulation: now I am a hardcore Metal Gear fan and I hated every moment of this simulation as you had to link memory to memory in order to progress to the next memory (sounds more complicated than it is) but assembling 20-30 isn't that hard but when you try to assemble 80 and you find out somewhere down the timeline you screwed up you will be pissed! I had to go through 53 memories before I found the missing link and it sure as hell pissed me off and personally this aspect should have been more refined and intuitive.
In conclusion this is a great perspective on a classic story and probably more aimed at the hardcore fans, for the person that's never played MGS, play MGS on the PsOne and you'll get a better understanding of it for half the price. But the story is still all there so it's in y good books and the story is truly amazing but better when your actually playing it.
Hardcore Fans Only (ME)