[Great use of YouTube’s annotations system][link] for a skillfully-crafted NES game. Could this be the start of a new longplay genre? See also: [Gimmick!][gim] on Wikipedia.
The ROM is available on the web using a simple Google search. I’ll leave you to that.
[gim]: http://en.wikipedia.org/wiki/Gimmick! “Gimmick!”
[link]: http://www.youtube.com/watch?v=zYcf2yUgblc “YouTube – Mr. Gimmick – Annotated NES Longplay (Pt. 1/4)”