Which X Series boss do you really hate? Is it because they're unreasonably difficult, or are they super annoying?
I've got two. The hardest X Series boss is the tank boss in Megaman Xtreme 2. Words cannot describe its unfathomable difficulty. It only has one real weakness, and the platform you need to stand on to nail it is constantly shot at. Its huge ass takes up nearly 90% of the room. Touch it once, and you take unreasonable damage.
But the most annoying boss EVER would have to be Jet Stingray. Why? It's not like I can't take him.
But when he shouts
at the top of his f***ing lungs...ugh. It quickly becomes unbearable.