[quote name='SolidSnakeX99']As far as I can tell, you are still missing Xbox Metal Gear Solid 2 Substance, The Document of Metal Gear Solid 2, and VR Missions. I don't know if you are still counting Ac!d and Ac!d 2 for the PSP systems.[/QUOTE]
Yeah, depends on what all you're trying to collect. There's still the GBC game, NES games, soundtracks, action figures, and strategy guides too.
edit. If you're a real stickler, Snake's in the new Smash Brothers game, but you have time for that one.