The events of this stage show occur between the movie Kamen Rider Ex-Aid: True Ending and its credit scene. In order to fulfill his promise to Poppy and play together, Emu gathers his friends in a new game called Kamen Rider Carnival!
| Actor | Role |
|---|---|
 Hiroki IijimaEmu Hojo / Kamen Rider Ex-Aid | Emu Hojo / Kamen Rider Ex-Aid |
 Toshiki SetoHiiro Kagami / Kamen Rider Brave | Hiiro Kagami / Kamen Rider Brave |
 Ukyo MatsumotoTaiga Hanaya / Kamen Rider Snipe / Kamen Rider Chronos | Taiga Hanaya / Kamen Rider Snipe / Kamen Rider Chronos |
 Tetsuya IwanagaKuroto Dan / Kamen Rider Genm | Kuroto Dan / Kamen Rider Genm |
 Ruka MatsudaAsuna Karino / Poppy Pipopapo / Kamen Rider Poppy | Asuna Karino / Poppy Pipopapo / Kamen Rider Poppy |
 Hayato OnozukaKiriya Kujo / Kamen Rider Lazer Turbo | Kiriya Kujo / Kamen Rider Lazer Turbo |
 Shouma KaiParado / Kamen Rider Para-DX | Parado / Kamen Rider Para-DX |
 Reina KurosakiNico Saiba / Kamen Rider Nico Snipe | Nico Saiba / Kamen Rider Nico Snipe |
 Shouma MachiiGuren Graphite | Guren Graphite |