Thunder Spinner

E-16 Electro Spinner (a.k.a. Thunder Spina, Spana スパナ in Japan) is an E-Series robot from the game Sonic Adventure. It is an upgraded form of the E-06 (Bladed) Spinner, a bat robot that attacks enemies by spinning, except that the Electro Spinner can also emit an electrical shield to protect itself.

It appears in the action stages Casinopolis, Speed Highway, Sky Deck and Final Egg.

A version of this badnik is seen in Sonic Unleashed, Sonic Colors and Sonic Generations, but with a new color scheme, essentially yellow and green, to differ them from the common bladed Spinners.