Heh, that was pretty funny/weird. As I'm thinking about it some more, I'm feeling more certain that I found it through a Blue's Media of the Day, except that it wasn't the actual media of the day. Instead, I think another short on the same website was highlighted, but I then went to the main website where a bunch of other comedy shorts were listed. That DDR contest movie was the one I ended up seeing.
So that makes it harder to find, especially since doing a Blue's search probably won't help. However, whoever submitted that Media of the Day might be a frequenter of whatever movie site that was. So I'm hoping they can direct me back to it.