You guys are too funny.
I just don't like (in a game striving for realism) having to fight a 'Boss' that is nearly invincible (ie - it takes five grenades and 200 bullets to the forehead to kill him).
If you're gonna have a so-called 'Boss' fight in a game like MGS, make it a challenge of a different sort. Make the challenge lie in trying to track him silently, or place a blow-gun dart through a small chink in his armor (just ONE, though, not 20 or 50 or 100). Or, better yet, improve the hand-to-hand combat for games like these and make the Boss battles more about skill. It would be reasonable if they had maybe as much as twice the resilience to harm as the playable character, but it's just ridiculous when their resilience is 10 or 20 fold that of the character... It detracts from the realism of the experience.
It's not just in video games, either. It always drives me crazy to watch movies that do this. Ever notice how the bad guy who's nothing more than a businessman gets pitted against the Navy Seal at the end of the movie? Somehow, even though the Seal's been breaking bad guys in two like toothpicks the whole movie, he ends up having a major struggle with the suit? Give me a break. It's not suspensful - it's moronic. Just like with the video game Bosses, the movie Bosses detract from the experience.
Honestly, none of you agree with me???
p.s. - MGS and MGS2 were VERY good games, but please: 'flawless'???
edit:
Where did I say Boss battles are "pointless or stupid"? I won't deny feeling some satisfaction at beating Bosses, I just don't think they belong in some games for the reasons above.
2nd edit:
I'm on a roll

Here's another thing that irks me about SOME Boss battles: the following cut scenes. Case in point: The Boss battle with the biker gang leader on the roof in Headhunter. Personally, I killed him using proximity mines and the hand gun. He survived the first two mines (plus many bullets), but the last mine got him. Then the cut scene begins, and he's just sitting there - apparently in no immediate danger of death - talking to me! How preposterous! Kind of brings to mind the sequence in MGS2 when the mad bomber guy gets defeated... (*runs and hides, fearing the devout MGS2 zealots*)