Rocket Drone is an alternate ability to the Engineer's Zombot Drone ability. The difference is that the Rocket Drone has 20 health instead of 5. Its primary weapon is the Mean Beam that deals less damage but it fires at a much faster rate, resulting in more damage per second. The Lone Cone attack drops a single Cone Bomb at a time and takes four seconds to recharge. Each Lone Cone deals 10 damage if it lands directly on a plant and 25 damage for the explosion. Its plant counterpart is the Artichoke Drone. It takes 60 seconds to recharge.