In your gaming experince, which final boss fight did you find to be your must difficult encounter

I can't believe it didn't occur to me to start this thread.
Anyway, the baddest boss I ever fought was The Kingpin in The Punisher on Sega Mega Drive 2.

My former boss back in my office in Lagos. That dude was plain difficult.

The final boss in Ninja Taro from my Gameboy days.

The hardest boss wasn't even the final boss
if you ever played ninja gaiden 1 the original not black or sigma then you will know that murai was a difficult boss battle and that was the first boss in the game.

25omega: The hardest boss wasn't even the final boss
if you ever played ninja gaiden 1 the original not black or sigma then you will know that murai was a difficult boss battle and that was the first boss in the game.

On the original xbox?
Murai?
The guy with the nunchaku?
Haba!! Come on! He wasn't that difficult. It was just a matter of timing the pattern of his attacks and counter attacking, although he knew how to block very well. Ninja gaiden was/is a difficult game and the bosses progressively got harder from there. Murai wasn't difficult for me.
Mine was (I think) the 3rd boss in Genma Onimusha but that was because I didn't know how 2 block. After giving up on Onimusha and playing Ninja Gaiden which taught me that I MUST block, I went back and completed Onimusha easily. The helicopter boss in Ninja Gaiden was tough and one particular timed challenge in Jet Set Radio Future.

I remember jak 2 being a frustratingly difficult game almost unfair on the other hand I've always wanted to play jet set radio is there an emulator for it