This is a list of Kamen Rider forms that are depicted in concept art, but have yet to make an official appearance in any media. Kamen Rider ZO Upgraded Form Senior Rider Remodeled ZO New ZO Riderman (A.R. World) Riderman suit Kamen Rider OOO Takayadoba Combo Bikaso Combo Shigazeshi Combo Mukachiri Combo Seishirogin Combo Saramiuo Combo Kamen Rider Snipe Tank Shooting Gamer Level 4 Kamen Rider Build GoldScorpion Form MomotarosDensya Form TanteiUSB Memory Form TakaMedal Form YujouRocket Form Mahou