A Personality Sphere is a machanical orb that contains morality, curiosity, intelligence or emotion. It has a moveable eye that can be a variety of colors (violet, yellowish orange, blue or red). They also have two wide 'limbs' that are on their top and bottom that allow minimal movement. It has a plug with three wires that allow it to hook up to most machines in the Aperture Science Laboratory.

PortalEdit

In Portal, the only Personality Spheres encountered are the ones in GLaDOS's Chamber. You put those spheres in the Aperture Science Emergency Intelligence Incinerator in order to defeat GLaDOS. There are several more Personality Spheres as seen in the end of Portal that soon activate. They all have Yellowing-Orange eyes.

Portal 2Edit

In Portal 2 Personality Sphere called Wheatly becomes your 'sidekick' when he detaches from a a traveling machine that only allows him to travel on rails.(poilers!) He then takes you on an escape route that leads to an elevator, however, the elevator takes you to GLaDOS's ruined chamber and he accidentally reactivates her and she breaks him. Later on in the game Wheatly peaks out and he glares at you.