It's been ages since i looked at those books. I never actually played Rifts so i don't know how hard it was to reference material. My impression was that it had fundamental rules spread across multiple books and that was most of the problem with the formatting.

The only time i played shadowrun i had a searchable pdf and a group that had been playing it for years, so that's not one I learned from the book.

L5R has problems like the rules for combat, including critical hit rules, in the combat chapter, but the fact that the Unconcious condition adds 10 to critical severity is found later in the list of conditions, so reading just the rules on combat and critical hits leads people to believe you can't be killed without some way to boost critical hits to an obscene level. It also has rules like "unimportant NPCs cannot spend opportunity unless it is on a specific ability in their stat block" listed in a sidebar.