User blog comment:ArchKnightUlthering/Extra Ideas For Metro Last Light./@comment-4488593-20120731042225/@comment-5080394-20120801102836

Five anomaly encounters, well in (Chase) it isn't exactly an encounter, the first time i was on that railcar i didn't even notice it, sure i knew something was happening but i was looking at the other side expecting to see dark ones (that was the first time i played the game) however i didn't see anything so i reloaded the game to check again and then i saw it so you can't call that an encounter, because you don't actually face it.

On the anomaly chapter you only encounter it once for real when it heads towards you but the second time you only see it killing the mutants from behind, and again when you encounter hordes of the mutants at the same chapter once again the anomaly kills them and then it leaves.