Gaim Gaiden: Kamen Rider Gridon VS Kamen Rider Bravo is a two episode mini-series that serves as the "fourth" installment of Kamen Rider Gaim Gaiden. It premiered on the Toei Tokusatsu Fan Club. This special features the appearance of Gridon Lychee Arms, Bravo Kingdurian Arms, Zangetsu Kachidoki Arms, and a new Rider, Kamen Rider Sylphi.