I once tried to learn the piano version of the piece heard in the link below, and eventually abandoned the idea.
When any degree of piano virtuosity is transcribed to the organ, we can expect the sparks to fly, but when the Prokofiev Toccata is transcribed to the organ, the demands are truly frightening.
Not only does Vincent Dubois get to grips with the notes, (which he plays at a very brisk tempo), the musicianship and console control are just wonderful.
Fasten your seat belts!
http://www.youtube.com/watch?v=v-CKqsMXl3A&feature=related
MM