I think a great weapon for Bioshock would be a gun that shoots out a magnetic shield that sticks to walls, floors, and ceilings. The gun also has a button that turns on the shield. When the shield is turned on, the Protectors are imediately drawn to the shield due to their metal head. They are slammed onto the shield. They are then stuck there helpless to your attack allowing you to kill them easily. If you decide not to kill the protector, don't get too comfortable because after about 15 seconds the shield will wear off and the Protector will be free. I think it would be really cool to see them fall from the ceiling or fly across the room.This gun allows you to control where the Protectors go for a little bit and defeat them easily. You can hang them from the ceiling, stick them to the wall and do what you want with them.