Plasma gun

The plasma rifle is a fully-automatic weapon that fires blue-white plasma very rapidly. Upon releasing the trigger, however, there is a moment where the player cannot fire. It uses the same ammo as the BFG 9000: energy cells.

The plasma rifle first appears in the level E2M1: Deimos Anomaly in a secret area, and in fact appears in all the levels of Episode 2. It first appears in a non-secret area in E2M5: Command Center.