§fThe Power Beam is the default Arm Cannon. It has the best rate of fire.
§fThe Power Beam also controls morph ball weapon systems.

[C]§e§lSamus's Notes:
§fThe Power Beam can be used to open Blue Doors.
§fIf you see your shots ricochet, cease fire. The Power Beam is not working against that target.
§fYou can use the Power Beam to quickly clear an area of weak foes.
§fThe modular nature of the Power Beam allows for the addition of weapons as needed.