Modifying in-game models, like getting infinite ammo, is matter of modifying in-memory values. Of course, accomplishing the former is much harder than the latter. Mad props to the original hackers.
The boob-mod AR codes I encrypted were 16-EFFING-LINES-LONG! And yeah, entered one boob-mod for Ada, twice for Ashley, and ALL 3 AGAIN AFTER MY EFFING AR CARD GOT CORRUPTED AND I HAD TO RE-ENTER A BUNCH OF THEM AGAIN SINCE THIS AR VERSION CAME OUT BEFORE RE4 WAS OUT BUT IT WAS ONLY $10 SO HOO-YAH!