Baa Humbug
Backwater Town
Badnik Army Repair Functionaries (BARF)
Ballhog Badnik
The BARFMobile
The Baron
Baron X
Batbrain Badnik
Robotnik's Battle-Craft
Beason Coast Zone
Benny Rabbit
Big The Cat
Big Badnik
Biohazard
The Black Asteroid
The Black Emerald
The Black Knight
The Blazer
Blockhead Bill
Mister Blobnik
Blueberry Hill Zone
Bluunt
The Blurrgh
Bob Beaky
Bob Beaky's Travelling Circus
Doctor Bob Bobble
Bodge's Robot Butler
Brain Drain Badnik
Brain Scanners
Bravehog
The Brotherhood Of Metallix
The Bruise Brothers
Bruiser Magoon
Commander Brutus
Brutus's Badnik Army
The Indestructible Bulk
Burrobot Badnik
Butch
Buzz Bomber Badnik
Buzzorgsky
Buzznik