A new BioShock 2 video on Computer and Video Games introduces the Siren's Alley level in the shooter sequel and showing off a new type of big daddy. If you need more spoilers, MTV Multiplayer has a BioShock guide revealing every plasma and weapon in the upcoming shooter sequel. If that leaves too much to the imagination there's a Weapons Showcase Video on IGN and they also have a Many Weapons of BioShock 2 trailer.