From Sonic Retro
|Games: Sonic & Knuckles, Sonic Generations (Nintendo 3DS)|
Butterdroid, called Tefu-tefu (テフテフ) in the Japanese manual, is a butterfly-like Badnik from Sonic & Knuckles found flying around in Mushroom Hill Zone. Usually appearing in pairs, they slowly fly back and forth, and proceed to attack the player when approached. They can be simply destroyed with a jump.
|Sonic & Knuckles|
|Sonic Generations (Nintendo 3DS)|