Hardboiled Minor Egg is a hat published in the catalog on March 28, 2018. As of April 2, 2018, it has been favorited 154 times. It is confirmed by Roblox to be a scrapped idea for the 2018 Egg Hunt, and is thus unobtainable.
It is a yellow egg with a blue, hexagonal gem attached to the head of the egg. Grey buildings, a detective, and the moon is found on top of the egg.