Speaking of scary regenerators, I went back and played RE4 again on my pre RE6 marathon. First time I played RE4 since it came out, since it was my least favorite RE game. I really enjoyed it this time through. Still not better than the classics, but very fun. Anyway, at first those regenerators were scary cause they just would NOT DIE. But then, once you get the note and find the IR scope, they go from inhumanely tough to not even being a remote threat. Hear breathing, pull out IR scope, blast em, dead.
Honestly, the Ganados with the god damn aimbot hatchets are worse. :/ I hate those hatchet throwing bastards.