one of the greatest 3 hands passages, and one of most intense passages written for piano, is in thalbergs trovatore
it's the a minor passage with the decending a minor scale in thirds in the right hand.
Have you, praytell, both the recording and the heart to share it with us?
I'd very muhch like to hear it.
On topic, have you ever heard of four-hand technique? Look no further! Godowsky Study on Chopin Op. 25 No. 1, No.2, not the left hand alone version. This one involves continuous leaping in opposite both hands. Very difficult, I am told.
Question: Would the middle passagework of the Mazeppa count as this sort of effect? Something more along the lines of the ending of the Scriabin Vers la Flamme? The organ point in Godowsky Passacaglia?
Edit:
I heard it on Naxos, and I was not necessarily impressed very much, although it was a cheap label.