Magnamite is a power station robot that supplies Metro City's power. It was designed in the form of an giant mechanical spider.
A incident happened after he was overloaded with power due to Astro's awakening. When the overload became too strong, Magnamite broke free and began to ravage Metro City. Astro, however, helped reduce his energy build-up and returned him to his rightful home.
"Power Up! "