Play as Kamen Rider 1 (first costume version)
After acquiring Kamen Rider Agito, beat the game again with any rider. At the rider select screen hold L1 + R1 to change costumes.
Play as Kamen Rider 2 (first costume version)
After acquiring Kamen Rider 1 (first costume), beat the game again with any rider. Highlight Kamen Rider 2 at the select screen and hold L1 + R1 to change costumes.
Play as Kamen Rider Agito
Beat the game as Kamen Rider Kuuga
Play as Kamen Rider Kuuga
Beat the game once with any character