Riddick is pretty damn good, but you aren't always given the clearest idea of what to do. Right now I'm stuck in the mines and I'm pissed. I've killed pretty much every guard in the area except for the bastard mech-guard guy, and I need to blow a door open, but I have no weapon or item to do so.
"The world is populated in the main by people who should not exist." - George Bernard Shaw