Sir-F-Fuzzy Logik is a Badnik and the tenth competitor in Dr. Robotnik's Mean Bean Machine. He speaks in an old English accent and carries a trident. He seems to have a small rivalry with Dragon Breath (probably because they are a knight and a dragon).
In episode one of Adventures of Sonic the Hedgehog, "Super Special Sonic Search & Smash Squad", he can be seen chasing Sonic along with other robots shouting "We got him!".
- His name is a pun on "fuzzy logic", as in something not being plausible or true.
- In the cartoon, he seems to have grayish fuzz instead of orange and what appear to be stars imprinted on his hands.
- He plays like Schezo Wegey from Puyo Puyo, the game on which Dr. Robotnik's Mean Bean Machine was based. Schezo Wegey also seems to act like an old-fashioned warrior.