Milko

Luke and Yoda realized that they were being watched by a mysterious humanoid on Dagobah. Yoda instructs Luke to stop the trespasser. Luke runs through the swamps until he finds the intruder. He is a a droid bounty hunter named Milko. He originally threatens to kill Luke, bu eventually puts down his weapons and begs for mercy. Luke shows the droid compassion and lets him leave in the scout ship that transported him to Dagobah. Luke thinks that this was a test arranged by Yoda, although he is not sure whether he passed or failed.