Saw - Ripper
For as much ammo as it uses, this is probably the most powerful and practical weapon in the entire game. One single shot can take out multiple enemies, and the ammo for it is well beyond plentiful. Only real downside is that it's a very short range weapon that could take some time to master. Buy it, and use it. Use it whenever you know there's a load of enemies around.
Primary Fire - Fires a spinning saw blade held a few feet in front of the character by a gravity tether. Spins for over 10 seconds and can devastate enemies no matter what type they are. Will do a lot of damage for roughly no ammo at all.
Alt Fire - Fires a single saw blade off in one direction and can cut through multiple enemies. Will take one ammo, and can't do all that much damage to enemies in the long run. Use only if there's not much other choice.
Added by: Forgoten_Scars Mar 10th 2011, ID#3726