Various fighting game bosses that have been super charged to be even harder thank their average form, now THEY are total BS. Most recent examples would be Unlimited Ragna from Blazblue and Lvl 130-150 Chaos from Dissidia. Those fuckers are so insanely powerful that they are pretty much broken.
Ragna: Increased stats giving him more health, higher defense, higher attack. He has Blood Kain on permanently without the health degeneration side effect. His life sapping abilities are increased by a massive margin. He will take big chunks of health out of you and regen big chunks himself. His attacks (especially distortion drives) tend to take highest priority over your own attack thus negating more interruptions. Get hit by carnage scissor and there goes 1/3 of your health, get it by his claw attack and say goodbye to about 40-50% of your health; and you can't interrupt it most of the time.
Yea....fucking bullshit fighting him. He's as bad as Order SOL from Guilty gear whose not much different, except no life leeching. But begin to lose all hope when he uses a dragon install.
Chaos: Well his higher level form just gives him a massive damage increase, at least 50% more than his normal form. So he kicks your ass quicker in a fight that's already challenging enough, and he uses Shinryuu a whole lot more and when near death loves to start spamming the harder attacks. He loves spamming Divine punishment a lot and if you get hit with his you're more often than not pretty fucked. And you have to beat him 3 times....his spinning attack alone will screw you over big time.
You sir are epic BS, but at least you are more sensible than Mr Ragna.