Electoons are the inhabitants of Rayman's world. They have pink, round bodies and, like Rayman, they are limbless. They spend most of their time playing and singing. They have some sort of a connection with the Great Protoon Orb. Like the Orb, they, too, were kidnapped by the evil and mysterious, Mr. Dark. There is another type of Electoons and these are the Anti-Toons. They resemble the Electoons, but are black in color and particularly not very nice. They attack by biting. Rayman is made of Electoons, this is made clear if Rayman dies in Rayman 1. During the events of Rayman 1 Mr. Dark traps all of the Electoons in several locked cages throughout Rayman's world, most in hidden and hard to reach places. However, Rayman has to collect them all, or else he will be unable to get inside the Candy Chateau.
Their name is a slightly changed version of 'electron', the negatively charged tiny orbiting particles of an atom.
The Electoons re-appear in Rayman Origins where they can be found through hidden passageways in the levels. They will, again, be trapped in locked cages, and Rayman must defeat all the enemies to reach the cage and break it open. Rayman can also get two additional Electoons by collecting enough Lums in each stage, and one more additional Electoon by returning to a previously completed stage and successfully completing the time trial. Rayman has to collect a specific amount of Electoons in each world so they can be used to build a bridge to the next world.
Also, in the demo, if Rayman (and/or the other playable characters) collects all nine electoons they will unlock a costume.