(tehnically this is Hongo's third transformation. In the first Kamen Rider movie he just said "Henshin" like Rider 2, but in the TV series, other movies and he always says "Rider Henshin")
Kamen Rider 1's Second Henshin Sequence
(tehnically this is Hongo's third transformation. In the first Kamen Rider movie he just said "Henshin" like Rider 2, but in the TV series, other movies and he always says "Rider Henshin")