Why Does Kamen Rider Jump After “Rider, Transform!”? The Shōwa-Era Rider Snack Bonus Card Explains Wind Energy

From 1971 to 1973’s Kamen Rider, the show established the jump as part of the transformation pose but never explained why. The detailed “transform secret” was reportedly included instead on the bonus Rider cards from the hit “Kamen Rider Snack,” citing wind energy.