first, I spell it different: "kururunfa".
I learned the version of Morio Higaonna's Goju. I couldn't find an online video of it.
The only variation I've seen is in Shito-Ryu.http://www.shitokai.com/movies/kururunfa.php
I've seen competition versions, but those don't count since they aren't considered a version modified for function, but rather for visual pleasantness.
here are some other versions that may interest you for comparison:http://www.gojuryu.ch/francais/video.htm