Here's the transformation sequence of one of the G Men, Kamen Rider G Den-O coming from the film, Kamen Rider x Kamen Rider x Kamen Rider the Movie: Cho Den-O Trilogy - Episode Yellow: Treasure of De End Pirates. He, alongside with his artificial Imagin partner, Eve, are fighting those who violate the laws of time and space.
For a time police, the car moving towards his face kinda distracts me... big time.