Medi-Junk was a white circular robot which had interchangable "arms" that consisted of scoops and spikes. The robot had a rounded "head" on top of the main body which consisted of two round red lights, seemingly suggesting that they represented eyes, with a small rectangular gap representing a mouth.
Medi-Junk was more or less complete by the time it attended the rehearsals for the Second Wars. However, at rehearsals the robot had brought along some of its interchangable weapons but the robot's movement speed was slow. Ultimately it did not appear in Series 2.