The Missile Launcher adds ballistic weapon capability to the Arm Cannon.
Missiles fired with a lock-on will seek their targets.
Missiles can destroy objects made from Radion or Brinstone.
There are Charge Combo enhancements scattered throughout the environment. They use the Missile Launcher and the Charge Beam in tandem to fire more effective blasts.
Each Missile Expansion you find will increase the number of Missiles you can carry by 5.