Probe (プローブ Purōbu?) is the most common form of an Ethereal, and can be found on a variety of places. They walk on their disproportionate fingers and attack by spinning around on one hand while clawing with the other.
Probes are the most basic forms of Ethereals, and are the equivalent of a Shadow Heartless or a Creeper Nobody. They have large, segmented fingers that they walk on, in a similar fashion to the Creepers. They have two yellow eyes and two antenne, much like Shadows. They are light blue in coloration, but their hands are gray. The antenne of the Probe form the Ethereal symbol.
Probes use there over-large hands to the fullest potential. When attacking, they flatten out one hand for balance, while clawing with the other one. They can also spin on their finger tips, but that often leaves them dizzy, open for attacks.