Octobots

Octobots are aliens, created by Giygas, appearing as enemies in Earthbound. Like the rest of Giygas' minions they use a psychic power called PSI. They often steal items from party members in the game series. Also, they appear in southern Scaraba, in the desert.

Appearance
Octobots are composed of a silver sphere. They have a visor and a cone in the centre. They have 4 tentacle-like parts instead of 8, despite their name.

Variants
Military Octobot - A stronger version of the original Octobot. They are blue and they appear in the Stonehenge Base.

Mechanical Octobot - An improved version of the Military Octobot. They are yellow and they appear in Onett after defeating Ness's Nightmare.

Ultimate Octobot - The most powerful Octobot in Mother 2/Earthbound. They are pink and they are encountered in the Cave of the Past.

Return of Octobot - Octobots modeled after the Ultimate Octobot. Their left sides are silver while their right sides are bronze. 2 of their tentacle-like parts are sliver while the other 2 are bronze. You can find them in the Laboratory Level in the Empire Porky Building.