fnaf 4 is like the only game where biting is actually shown
fnaf 1 has the chomp of the 87th year of the 19th century mentioned once by phone guy
fnaf 2 has no mentions i'm aware of, but some people suspect that Jeremy got bit after night 6
fnaf 3 doesn't show or mention a bite that i'm aware of
sister location has the scooper, but no bite
fnaf world is fnaf world
pizzeria simulator doesn't mention any bite i think
security breach has some jumpscares that suggest chomping, but not much more than that