Zombot Turret is a turret that can be built from rubbles and bolts by the Engineer and its variants in Plants vs. Zombies: Garden Warfare and Plants vs. Zombies: Garden Warfare 2. It will automatically attack plants at sight, including drones. It can be upgraded to Zombot Missile Turret (Mark II) and to Rocket Zombot (Mark III), yet it cannot be downgraded back to a lower level once upgraded. There are three near each teleporter and one near the garden. The plant equivalent to them is the Guardian Crystal.