Now as often as I've raved about the genius that is Dr. Horrible's Sing-Along Blog, I've never come across something as awesome as this. It's a Nintendo-style interpretation of the entire story musical, and it is AWSOME. I find the similarities in the storylines so well done and thought out, and it really is quite funny to see all these in game format. What's more, the 8-bit soundtrack is SO WELL DONE. It's not orchestra level audiophonics, but it was just so integrated and I loved the way he utilized the themes to great effect. Why don't you check it out yourself.
I hear that he's making a similar game for Glee, which I think might prove very interesting.
It's a perfect story, so they say
The Edna Man