Fokx

Fokx, known as "Nukky" (ヌッキー) in Japan, is a enemy in the Mega Man Star Force series, an EM Virus shaped like a tanuki.

Battle Cards
Fokx-Fu, known as Henge no Jutsu (ヘンゲノジュツ) in Japan, is the Battle Card family obtained from Fokx viruses. The user temporarily changes into a Fokx, and when hit while in this form, counters with a strong Wide Sword attack.