The Weaponized Atlas Robot is the latest and most advanced weapon technology in the Minecraftian universe. Basically it’s an enormous robot powered by redstone which can walk and shoot fire charges at the same time. It’s not easy to build but it’s definitely a great weapon to fight swarms of monsters or other intruders who you want demolished.
To activate the robot you will need to do two things. First you will have to place a slimeblock at the back of the machine (as seen down below).
Then go to the front of the robot and use the flint & steel on the observer block to enable the robot to start walking.
It both walks and shoots fire charges at the same time.