Why do free roam games always have things to collect that are impossible to complete? inFamous 1 was alright because you could do the scan method and just be very thorough. inFamous 2 was even better because your scan would show you the location of the nearest orb even if it was 200 miles away! These a excellent examples of collectables in free roam games being more possible.
Prototype does not assist you in any way finding 250 collectibles spread across New York City... :-(
So I've beaten the game from start to finish without dying. Upon this playthrough I still haven't found anymore collectibles! I have 8 left and a trophy haunting me... I'm starting to think I won't be able to find them without internet assistance! I'll get my Hard mode trophy and see if I can find anymore collectibles in that playthrough and if not then I will finally crack and use an internet guide.