It was James Joyce who once said "rage-quitting is common, but to break a man is sacred".
Actually, that's a lie. But I'm sure he'd have said something along those lines had he come across a game called I Wanna Be The Guy Gaiden.
This is a homebrew platformer purpose-built to be farcically unfair. Safe platforms suddenly collapse, power-up items reign terror, and completing a level is never, ever as straightforward as you think.
It's actually not fun, but it's amazing to watch someone else be reduced to a broken mess playing it.
The game was shown for the first time at the Evo 2012 Tournament, a competition usually reserved for masterful fighting game players. One player, Floe, spent the best part of three hours trying to complete it.
See what happened below (skip to 0:15:56 for the gameplay):