I loved Painkiller - it was big stupid gothic fun, with great weapons, imaginative hell/purgatory levels, massive enemies and OTT physics.
The game's developers, People Can Fly, made a half-decent expansion pack Battle out of Hell, and have since moved onto an exciting new shooter project with Epic, leaving publisher Dreamcatcher to try and cobble together enough amateur talent to make this standalone companion. And yes, it's bollocks.
All the charm of the original is missing, replaced with gameplay lacking pacing and imagination, dull weapons, endless enemy respawns, poor physics, mediocre music and bog-standard graphics.
To give you an example, there's an enemy made of flames that when blasted with a shotgun, just dissipates. It's almost as unsatisfactory as your character falling into a crack in the ground and being unable to get out, or being forced to endure the terrible loading times.
Painkiller Overdose feels like the gaming equivalent of your favourite band reforming with none of the original members. Despite the new weapons, bosses and multiplayer maps, this overdose has slipped into a coma. Avoid.