Game uses a 1B1165/1 MPU, five 1B13123 (7 Digit) Display boards, a 1B11136 or 1B11136/0 Sound board, a 1B1166 driver board, and a 1B11167/0 Power Supply board. Farfalla is Italian for "butterfly". We asked Italian collector Federico Croci about the two versions of backglasses. He replies, "The 'uncensored version' is the usual version, it was sent everywhere in the world, not really in Italy only, and it's featured on the cover of the manual. Story is there was the USA distributor which was afraid about the backglass, and asked it to be 'censored'. But it was produced only for him. So, the 'censored' version is rarer, as it was made for USA only. The graphic on the cover of the manual, though, remained the same. So, one really is the "international version", while the other is for USA only." In the Files Section is a partial manual for this game and its Table of Contents indicates it has pages printed in Italian, German, English, and French. However, only the Italian language pages are included. The document has no front cover and it's last page indicates Farfalla is Serial Number 1532 which may be the model number for this game.