|Alignment and character traits|
Humpty is the third competitor from Dr. Robotnik's Mean Bean Machine. He is a shy, egg-based robot that has trouble balancing, and a bandage on his face which he will peel at when worried.
- His name is based on the nursery rhyme character, Humpty Dumpty, who is usually portrayed as an egg (just like Humpty). In another reference to the nursery rhyme, his sprite shows Humpty sitting on a rock and struggling not to fall off. Humpty Dumpty also appears in Through the Looking-Glass, and What Alice Found There; in the novel, he is an egg who sits on a wall.
- Humpty is the only robot from Dr. Robotnik's Mean Bean Machine who does not appear in Adventures of Sonic the Hedgehog. However, in Sonic Christmas Blast several robots have a similar design.
- He plays like Sukiyapodes from Puyo Puyo.