I remember watching the making-of DVD that came with MGS2 and Kojima mentioned Chinaman. You would have fought him in the chamber where you fight Vamp in the final game. Parts of the battle would have taken place underwater where Chinaman would send sharks after you. He also had a dragon tattoo on his chest that would come to life when he was underwater and it would attack Raiden.
Sometimes I like to ponder the game that MGS2 could have been if it hadn't been so rushed to completion. It would have been something quite different, I think...
CPU requirements are always bullshit as the CPU is a non factor in PC gaming. I suspect Intel/AMD pays to get the CPU in the recommendations even though a 10year old mainstream CPU would do fine in every game. It has always been like this.
How is a CPU a "non-factor"? You think all games are GPU-bound? Also good luck running modern games on a single-core Intel Pentium 4.
Dunno why people are so surprised at high VRAM requirements. The next-gen consoles have 8GB of memory for both CPU and GPU access. What did you expect to happen when these games were brought over to PC?