Game: Demon's Souls
A lot of people consider Demon's Souls to be one of-if not the-toughest game of this console cycle. You have to remain patient, no enemy is a pushover, and a very small amount of health gives you little leeway for mistakes. In this speed run, the gamer throws patience out the window in order to set a record that we think is as close as you can get to unbreakable.
If you beat Demon's Souls in 20 hours you've accomplished something worth throwing on your resume. Beating the game in less than fifty five minutes is just plain bananas.