Spider-Trons are large spider-like Robots. The general shape of all of them is usually a main body, containing the core (their vulnerable point) suspended in the air by four legs. Therefore not actually spiders but the Robots do not care. There are three types presently in the arena: ST-5K, ST-6K and ST-7K. ST-5K It is the smallest and easiest to eliminate. ST-6K is taller and has 2 cores. ST-7K is the most dangerous, with 4 cores and instead of launching bombs it fires lasers.