Kamen Rider Zi-O Supplementary Project
Chronology
| Episode | Title | Air date |
|---|---|---|
| 1.5 | Naming Mystery ネーミングの謎 |
September 2, 2018 |
| 2.5 | The World's Rules 世界のルール |
September 9, 2018 |
| 3.5 | Royal Spoilers 王位なるネタバレ |
September 16, 2018 |
| 4.5 | Confessions of A Legends Aレジェンドたちの告白 |
September 23, 2018 |
| 5.5 | Tokiwa Sougo and the Mysterious Cellphone トキワ荘ゴと謎電話 |
September 30, 2018 |
| 6.5 | Fourze 555's Secret フォーゼ555の秘密 |
October 7, 2018 |
| 7.5 | Who's the worst Black 最悪のブラックは誰だ |
October 14, 2018 |
| 8.5 | The terrifying Time Paradox 恐怖のタイムパラドックス！ |
October 21, 2018 |
| 9.5 | King & God & Adult 王と神とオトナ |
October 28, 2018 |
| 10.5 | Mouri VS Shimoyama モーリ対シモヤマ |
November 11, 2018 |
| 11.5 | Mysterious 95DO! 謎の95DO! |
November 18, 2018 |
| 12.5 | Interview with Time Travelers インタビュー・ウィズ・未来人 |
November 25, 2018 |
| 13.5 | Ghost teacher ユーレイの先生 |
December 2, 2018 |
| 14.5 | ' ピンクの悪魔 |
December 9, 2018 |
| 15.5 | Supplementary Project into Eternity (Part 1) 補完計画よ永遠に（前編） |
December 16, 2018 |
| 16.5 | Supplementary Project into Eternity (Part 2) 補完計画よ永遠に（後編） |
December 23, 2018 |