PK Droids originate from the Star Wars series, and made special appearances in Lego Metroid. Though their creation and purpose completely differ from that of it's Star Wars alter ego. Dal-G, constructed his army of PK Droids after turning against his former ruler, Dorn, from scraps left by the X-nelians in the X-nelian Mine. PK Droids assist Dal-G in virtually anything. They are programmed as battle droids as well as repair droids.