I gotta agree with Eric, offically the japanese frowned on kill markings but they did not stop it from happening either. They can also be confusing to. Here is a link to some of the kill marking identified from different sources. Most books seem to publish these types of aircraft pictures because they look alot better then an aircraft without unusual markings. But if you look at post war scrap or abandoned aircraft photo's they are harder or more rare to find.
http://www.ww2aircraft.net/forum/ai...panese-aircraft-markings-camouflage-9317.html