1. Castlevania
http://youtu.be/q-NLl0bqFNQ The grandaddy of the hair-tearingly difficult video games, Castlevania was also extremely popular in its day, despite being one of the most intentionally difficult games available. It was designed in such a way that you were at all times exposed and under duress. What's more, most of the enemies were powerful enough to rob you of huge chunks of health in one go and thanks to the fact that taking a hit caused your guy to be knocked backwards, even a relatively harmless little bat(stard) could knock you into a bottomless pit or one-hit-kill trap. Despite its popularity, the original Castlevania came under flak for its absolutely stupid level of difficulty. Yes, it's safe to say, Castlevania (and many of its succesors for that matter) hated your guts and wanted to cause you eternal suffering at every opportunity. And that it most certainly did. As a result, the list of people who've actually beaten it from start to finish without cheating could likely be written on a single sheet of A4. So, there are ten horrendously difficult video games that most of us will simply never beat. Disagree with any of my choices? Wanna add to the pile? Do let us know, eh?