The F-Laser, also known as the Firefly-Laser (ウイルレーザー Uiru Reezaa , lit. "Will Laser") is the special weapon that X receives from Izzy Glow. In normal fire, it sends out a firefly-like projectile that X can guide (as the weapon's Japanese name suggests). It is useful for finding something in tight spaces, if it is guided properly. Charged up, it sends out a large beam. The large beam required two firefly.