DrRETRO is a vibrant NPC in the game Regretevator, known for her cheerful yet enigmatic personality. She is represented as a yellow sphere with shiny oval eyes, a massive smiling mouth, and playful cat ears on top. DrRETRO’s appearance can change with special updates, such as wearing dark purple earmuffs during Christmas or becoming transparent in the April Ghouls’ update. Despite her friendly demeanor and dedication as an in-game doctor, DrRETRO has a dark side. If the elevator is too crowded, she won’t hesitate to eliminate NPCs or players who annoy her using her powerful purple laser eyes. Interestingly, she also heals NPCs with less than 50 HP, showcasing her dual nature. A fanart game cursor featuring DrRETRO captures her whimsical yet dangerous essence.