This guy has some epic raps about video games. Here's his mass effect one (Check it out)

http://www.youtube.com/watch?v=HExOCl3YypM&ob=av3e

Dan Bull is aweshum! :D My favorite rap by him is a conflicting between Skyrim and Assasin's Creed.

I thought the Skyrim rap was his best, then I heard his mass effect one (I've already memorized both of them and can almost rap it perfectly)