Day 27 - Most epic scene ever.
KH2 - final boss battle
Still love the many stages involved and how each one plays out. Let's throw buildings at our heroes and see if they can dodge them!
KH:BBS - Last Episode final boss battle
Even though we all knew what would happen by that point, I actually enjoyed the feeling of denial I had at the time, haha.
999 - true ending
So much epicness, cannot summarize it in one sentence.
Metal Gear Solid 4 - Snake at the cemetery after the credits
I SALUTE YOU! ;_;
There are probably more, but this is what I can recall at the moment.