A Cannon in Aftershock for Quake is a gun turret that fires rapid-fire dual lasers similar to those seen in a Laser Trap. This hazard is featured in the level GUNS. The Cannon is mounted to a base and is often triggered by standing on a Button directly behind the Cannon. As they can only be activated when Ranger is behind the Cannon, this means that they cannot hurt Ranger. Instead, they are used to kill Monsters directly in its line of sight. Firing the Cannon will not alert a Monster, meaning it excels at killing entities that are standing in front of the Cannon and are currently unaware of Ranger's presence.