You keep saying it has a huge depth, fine keep that opinion, i'v already stated mine, wich is the opposite, shallow and cheesy depth. (not that it doesn't have any.)
So you are admitting to the depth in MGS and by your quoted review, both the philosophical and political depth. This is what you were denying. I'm not going to say MGS2's end wasn't corny, but it didn't offend me - because the whole last thrid of that game was so postmodern. I was in such a state of philosophical flux that Raiden's loved upness didn't bother me - and actually grew my admiration of Snake - the real person, as opposed to Radien the videogame character.
You'd now have to quantify what you mean by "quality". Do you mean the philosophy is not explicit? Or do you mean the philosophical thoughts expressed are not themselves of any importance, nor are they expressed expressed fully? Because I find media that doesn't make it's philosophical thoughts explicit to be the much more profound exploration - eg. compare The Matrix to The Matrix 2 and 3. But I do think the MGS games explore their philosophical and political thoughts fully (and MGS4 should tie it all up for us)
Now I'm happy to agree that MGS3 was less philosophical than its forebears, since it was aiming to be a 1960's spy film (no more is this expressed than through it's title song
http://www.youtube.com/watch?v=i_zIKKOjC7Q ), and so it was the politics and action that came shining through.
However, I fail to agree the philosophical depth and quality is missing from MGS2. This quality to many was either seen as its success or its failing (too postmodern and complex for some). Even going on the sometimes faithful Wikipedia you can get an idea of the ideas MGS2 explored (and I believe these themes were explored in MGS1 but made more explicit in MGS2):
The storyline explores many philosophical and cyberpunk themes in great detail, including meme theory, artificial intelligence, information control, conspiracy theories, political and military maneuvering, evolution, existentialism, censorship, the manipulation of free will and the nature of reality.
http://en.wikipedia.org/wiki/Metal_Gear_Solid_2:_Sons_of_Liberty
(People who haven't played MGS2, I suggest you don't read this, but i won't spoiler it as it's a very old game.)
Artificial Intellegence is greatly explored and quite explicitly through the Colonel, and relating to this is the exploration of the importance of information itself...how much are we defined by information - is information all you need to create a person, to create The Patriots? This is directly expanding upon MGS1's question of how much are we defined by our genes (this is really embedded in all three MGS games - genes and if they make us who we are - since of course Snake is a clone.)
This article
http://junkerhq.net/MGS2/ (presumably by a student) is a great (though short) exploration of MGS2's philosophical themes. Here's an excerpt:
During the game, Kojima makes a loop to engulf the player. The one that has gone through the VR training in Shadow Moses; the one that executed everything as told; the one that has been "talking" to an AI and interpreting the recorded voices as if spoken by a person; the one who thought the Colonel was "acting a bit strange, but it must be because Raiden is a rookie", although has never met the Colonel in person; the one whose name appears on Raiden's dog tag at the end... This is clearly implied while running naked on New York's 52nd Street... "Raiden, turn the game console off right now! ... Don't worry, it's a game! It's a game just like usual. You'll ruin your eyes playing so close to the TV.". Those are clear messages to the player, as well as the screen that reads "Fission Mailed", simulating a screwed up GAME OVER, while the game continues in the small overlay. These are clear signs of a higher level controlling the "reality" that the game simulation is, which is being affected by the virus. So you see, Raiden was not being controlled. You were... "Son of Liberty".
The game was designed this way to make the player uncomfortable with the situation. With being controlled. Everyone wanted to play Snake for the whole game, but this that we were given is a work of modern art and expression that is intended to make the player think. It gives feelings and emotions that other kind of media, like books or movies, wouldn't be able to because you are not playing the main character. That is the whole point; transmit these memes to a generation in a way that involved form and content. The ideas were not new, but were used in perfect harmony with the game to create an interactive experience. This essay is in the same spirit. Using existing memes to pass on a message that tries to reproduce itself: The Meta-Meme. The whole idea of Snake being the main character seen through the eyes of a rookie was well worth it; it was also completely necessary to place the burden on the player's shoulders.
This view is confirmed by Kojima himself:
"His goal was, as he explained to me, "To make a videogame that told a story that could only be told in a videogame." His first and foremost goal, he claims, was to "Use the medium," which is, as he put it, "inherently postmodern."
And really , it's hard to deny because it's very explicit if you know what you're looking for.
And this article here
http://www.insertcredit.com/features/dreaming2/index.html is a very interesting exploration of MGS2's reflective nature - the game reflects on what being a videogame is all about - what it is to play a game, what it is for a game character to be in a game and for you to control him/her. It's this reflective nature that I feel puts MGS2 especially on another level - and even into a philosophical work itself (rather than exploring other people's philosophical ideas.)
I mean I could go on and write a thesis, and my words are merely from memory and the sources I've provided. But I'll leave it at this, just to suggest that you might be missing out on things the games actually explore in their plot, codecs, and even gameplay.
And what I do in my spare time need not be of any interest to you. Playing videogames and entering into conversations about them needn't mean I am neglecting any academic sides of my personality. In fact, I think the marriage of media and philosophy can be quite productive and engaging.