History Modifying Machine

The History Modifying Machine (歴史改変マシン) was built by the Shocker to modify the time.It was debut in w:c:tokusatsu:Super Hero Taisen GP: Kamen Rider 3 and equipped on the Rider Robo.After the Rider Robo was destroyed, it was be recovered and use to created the Kamen Rider 4.