So, you think you're hardcore. Well, try this on for size, Mr. I'll Take On Any Challenge.

Dark Souls is a tough game. It's exponentially more difficult when you opt to use a freakin' Rock Band guitar…yeah, you read that correctly.

Benjamin "Bearzly" Gwin decided to plug his old Rock Band guitar into his PC and then, using an emulator, he remapped the guitar's controls to the Xbox 360 pad (check out the diagram at YouTube ). Gwin says that the only movement actions he had at his disposal were "control vertical movement speed, move to right, and rotate camera left." …good God. And yet, despite the insanity, he actually managed to finish Dark Souls this way in just over 11 hours.

Here's a video of Gwin taking down Ornstein and Smough. Impressed?