Security Robot

A Security robot (警備ロボ) is an automated cylindrical machine designed to protect security, and enforce rules. It is specifically stated as a mobile criminal surveillance device. Each unit costs 1.2 million yen.

It can be found all over and only in Academy City. Like the Cleaning robot, it is cylindrical in shape, and with it, it is one of the most noticeable features of the scientific advancement of the city.

Appearance
It is cylindrical in appearance and is designed specifically to look like a metal container with rollers underneath for mobility. It also has a green circular device that in the front seems to glow red when alarmed.

It was originally designed as a puppy robot, but the puppy robots attracted children's attention too easily, making it hard for the robot to move about. As such, all of the robots were modified to look like metal cylinders.

In open grounds it is shown to be always in groups.

Movement
One defining characteristic of the machine is to stand on its legs which is usually folded and kept inside the robot, to look larger and intimidating. They are also shown to be able to at least stand on one leg, as well as being able to stand back up if it falls down.

The security robot are also made to climb up over various changes in the terrain and could operate elevators using infrared signals. However, if there are certain obstacles that cannot be avoided, they would repeat the process of trying to overcome it a certain number of times until they put a hold on it and overlook for the time being to go somewhere else.

Communication
The security robot possess its own robotic voice which it uses to alert people and report to superiors. Along with this is knowledge with basic Academy City laws such as student curfews or violations with using esper powers, accompanying this is a siren.

Operation
Companies and other establishments use the robot for security purposes, for example patrol duty's or handling ne'er-do-wells. Most importantly, the robot is part of Anti-Skill's strategy, and is used in front of formations before an Anti-Skill personnel, as well as a barrier during firefights, implying that it is strong enough to withstand some bullet fire.

It is shown that is has some form of attacking capabilities, as it has a compartment that can open up just under its siren. They are also apparently capable of storing water and using to put out small fires.