Nocturne is kinda hard to get into. It is a difficult game, but the real problem is the high Encounter-Rate. But once you get over it, its a really cool game.
I like the theme of Games, that are themself not amazing, but lead to better future titles. Love this list !
Altough, one game that I think is missing is the original Metal Gear. The first game was a weird form of Kojima's ideas, that got better with the jump to 3D.
@hildatilde: I think it just takes some time to get used to the MGS1 controls. That game punishes enemy encounter really hard, maybe even more then the other games. Thats why the heliport is perhaps the hardest place in the game. But once you get used to the controls and see how limited the enemy AI is, the game gets alot easier.
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