Speaking of bossfights, I'm showing my age a bit here but the original Shinobi on the Sega Master System.
It's a viciously difficult game, especially towards the end, and you have limited lives, and the final boss is a really nasty piece of work. He's faster than you, has more hitpoints than you, he can fly, teleport, clone himself and throw up forcefields, none of which you can do. Worse, in Shinobi you lose all your power-ups when you die (and you WILL die to the final boss the first time you meet him), and the checkpoint the game throws you back to has no powerups between it and the boss, meaning you have to face the final boss with a base character - no weapons, no magic and a pitiful number of hitpoints.
8 year old me only ever beat the guy once. And what was my reward for defeating what to this day is the toughest bossfight I have ever beaten?
The same "Game Over" screen I would have seen if I'd just died again. Which is just a black screen with the words "Game Over" in the middle. That's it. I threw the controller across the room in disgust and never played a Shinobi game again.
Fuck you, game.
