Tough Act to Follow - The entire series has been getting worse and worse, as each of the differing developers that followed after People Can Fly are ignoring (or simply not understanding) the subtleties and blatancies that made the original Painkiller so good. As a Game Spot review for Resurrection puts it:
"While the original game is still a treat for old-school shooter fans who won't let go of DOOM, all of the expansions and stand-alone add-ons have been pretty much atrocious. Let's hope that Painkiller: Resurrection is the last nail in the coffin."
- Many players felt that even the first expansion, Battle Out of Hell, which was also developed by the original developers, wasn't quite up to par with the original game's material, mostly because the expansion pack consisted entirely of levels and weapons that were previously cut from the original game due to time constraints or quality control. To put things into perspective, People Can Fly spent almost three years working on Painkiller alone, and Battle Out of Hell was released six months later.