I also saw it on YouTube - great demo! After the intro it causes a CPU halt on CCS64 v3.9.2 (by Per Håkan Sundell). Any ideas on how to make it work on that emulator?
Still got, still working: Atari 4Mb STe, 520STFM, 2.5Mb STF. Hardware: Cumana CSA 354, Ultimate Ripper, Blitz Turbo, Synchro Express II (US and UK Versions).