DrRETRO consists of a yellow-colored sphere with two cat ears on top, two black oval eyes and a wide smile. if any NPC with less than 50 HP is present in the elevator, DrRETRO will heal them to their maximum HP. She does this via green lasers from her eyes. Once the Gumball Machine floor comes up, DrRETRO has a chance to peek from the top of the elevator and then eventually fall, entering the elevator. She will spin left to right during her trip in the elevator, which is said to happy