1) Default Form

"Rider Time! (Electronic beat) Kamen Rider Zi-O!"

2) All 20 Primary Heisei Rider Form

3) Decade Armor Form

"Rider Time! Kamen Rider Zi-O! Armor Time! (Upbeat rock music) KamenRide! Wow! Decade! Decade! Deca~de! (Decade's transformation sounds)"

4) II Form

"Rider Time! (Sytheziser tone) Kamen Rider~! (Rider~!) Zi-O (Zi-O!) Zi-O~! II!"

5) Trinity Form

"Rider Time! Kamen Rider Zi-O! Trinity Time! Mittsu no chikara! Kamen Rider Zi-O! Geiz! Woz! T-rin-i-ty~! Trinity!"

6) Grand Form

"Rider Time! Kamen Rider Zi-O! Grand Time! (Orchestral rock music) Kuuga, Agito, Ryuki, Faiz, Bla~de! Hibiki, Kabuto, Den-O, Kiva, Deca~de! W! OOO! Fourze~! Wizard, Gaim, Drive~! Ghost! Ex-Aid! Build~! Iwae! Kamen Rider~! Grand Zi-O~!

7) Ohma Form

"Shukufuku no toki! Saikō! Saizen! Saidai! Saikyō ō! Ohma Zi-O!"

8) Zio Ohma Form

"King Time! Kamen Rider Zi-O! Oh~ma~!"

9) Final Form: King Zi-O Form

"Shukufuku no toki! Yūjō! Yasashisa! Eien! Shin'yū ō! King Zi-O!"

"Time of blessing! Brave! Eternity! Divine! King ZIO!"

Geiz Form:

Zio gorestsu and Zio shippu Form: