YouTube user DarthGollumKong apparently has two things: a lot of manual dexterity and a lot of time on his hands. In the YouTube video below, he demonstrates a feat that I would have said was impossible -- playing all four parts in the video game Rock Band at the same time: guitar, bass, drums, and vocals. Now, the first three of those were set to "easy" difficulty, but he did keep the vocals on "medium" (though his singing comes out as weak and distracted due to all the fiddling he's doing with both arms and both feet, playing the instruments). He taped the guitar and bass together to allow him to reach them using a single hand on each side (one hand for both necks, the other hand for both strummer thingies). In order to play the drums with no hands remaining, he taped drumsticks to his shoes. Dude.
Watch and be amazed (the action starts at 1:23):
Okay, I'll admit this isn't the most compelling performance of the music -- but our boy Darth is doing some serious multitasking here. Check out another video in which he plays with tougher difficulty settings.