In "Something Ricked This Way Comes" upon its creation, it asks Rick, "What is my purpose?", in response, Rick tells it to pass the butter. Moments after completing its task, the Robot repeats, "What is my purpose?" Rick clarifies that it passes butter. It looks down realizing its sole reason for existence is for something so mundane and says "Oh my god." Rick responds "Yeah, welcome to the club, pal."
Later on, while Rick is dining alone, the Robot passive-aggressively slams a whole stick of butter in Rick's food tray, then spurns his offer to see a movie by answering: "I am not programmed for friendship."
The Butter Robot makes its last appearance in the same episode as Morty's science fair project held up inside a sandwich bag after Rick gives it to Morty. Its last word on screen is "Butter."
The Butter Robot returns in a Rick and Morty commercial for Old Spice, and is tossed around, and eventually eaten, and destroyed by three giant anthropomorphic Old Spice spray cans.
- “Why reach for the butter yourself?”
- —In-game description
- Rick and Morty Old Spice Commercial