There are boss battles, and then there are annoying sequences of code custom-designed to annoy you as much as possible, then there are Guantanamo Bay torture devices and then there's Ornstein and Smough - the twin battle from Dark Souls that'll not only test how good of a gamer you are, but just how much you want to retain the windows in your house. Some bosses elect to rely on that former notion of making things extremely unfair for the player - maybe like Tekken 5's Jinpachi suddenly swallowing all your health in one move, for example - but for O&S, and for Dark Souls in general, you'll never escape the fact that the only reason you died is because it was your fault. There are occasions where this isn't the case by a long shot (getting toasted on that opening bridge, anyone?), but when fighting these two guys you need to unlearn everything you think you hold dear about how to tackle two nimbly-moving enemies at once, perfecting your dive-rolls and deploying spells to within micro-seconds of each other. https://www.youtube.com/watch?v=kX3AY-ZNsmI Oh, and whichever one you kill first gets absorbed into the second, making for an uber-boss that's even more deadly in the second half. But when you finally surmount these two and know you've accomplished something you'll never have to do again (because as gamers we have to beat these things at least one), you'll be positively shaking with positivity - nothing even comes close.