MGS3: Snake Eater guys, the ultimate apotheosis of the Metal Gear Solid franchise, the sweet spot between immersive/complex gamplay features and an overdesigned if serviceable game that tries to cover too many bases.
Seriously, the Camo things works, the weapons are varied and awesome, the environments are well detailed and cool. Animals brought their own danger and awesomeness, boss fights were par for the Metal Gear course but The End? The End was the best boss fight I'd ever played and to this day nothing has topped The End. A perfect combination of stealth, camo usage, hunting, use of the jungle envrionment, and sniper duel to top it all off. You're in a hunting ground and have to master the environment itself to beat your opponent.
I loved it, that slow, patient feeling of tracking The End, wondering if he was going to line you up in his sights at any moment, realising you were getting closer and closer until: You see him, there, anticipating your approach from another angle. You've outsmarted him this time, get his camo, take down some of his stamina and the hunt starts all over again.
Never had a gaming experience that topped my first battle with The End.
Can you tell I liked the boss battle with The End?