2017: Grand Climax!

2019: Grand Climax! (2017：グランド・クライマックス！) is the fortieth episode of Kamen Rider Zi-O. It is the second part of the Kamen Rider Den-O tribute arc. It features the full debut of Kamen Rider GrandZi-O.

Synopsis
to be added

Continuity and Placement

 * Kamen Rider Den-O: After the events of Kamen Rider Heisei Generations FOREVER.

Plot
to be added

Cast

 * Sougo Tokiwa (常磐 ソウゴ): So Okuno (奥野 壮)
 * Geiz Myokoin (明光院 ゲイツ): Gaku Oshida (押田 岳)
 * Tsukuyomi (ツクヨミ): Shieri Ohata (大幡 しえり)
 * Black Woz (黑ウォズ): Keisuke Watanabe (渡邊 圭祐)
 * Heure (ウール): Rihito Itagaki (板垣 李光人)
 * Ora (オーラ): Ayaka Konno (紺野 彩夏)
 * Swartz (スウォルツ): Kentaro Kanesaki (兼崎 健太郎)
 * Junichiro Tokiwa (常磐 順一郎): Katsuhisa Namase (生瀬 勝久)
 * Ziku-Driver, Ridewatch Voices: Rikiya Koyama (小山 力也)
 * Ziku-Driver Voice: Yohei Onishi (大西 洋平)
 * BeyonDriver Voice: AFRO (アフロ)

Guest Cast

 * Yuto Sakurai (桜井 侑斗): Yuichi Nakamura (中村 優一)
 * Momotaros (モモタロス): Toshihiko Seki (関 俊彦)
 * Urataros (ウラタロス): Kōji Yusa (遊佐 浩二)
 * Kintaros (キンタロス): Masaki Terasoma (てらそま まさき)
 * Ryutaros (リュウタロス): Kenichi Suzumura (鈴村 健一)
 * Deneb (デネブ): Hōchū Ōtsuka (大塚 芳忠)
 * Takuya Endo (遠藤タクヤ): Dai Goto (後藤大)

Suit Actors

 * Kamen Rider Zi-O: Seiji Takaiwa (高岩 成二)
 * Kamen Rider Geiz: Yuya Nawata (縄田 雄哉)
 * Kamen Rider Woz: Eitoku (永德)
 * Kamen Rider Zeronos:
 * Momotaros:
 * Urataros:
 * Kintaros:
 * Ryutaros:
 * Deneb:
 * Mole Imagin:
 * New Mole Imagin:
 * Another Den-O:

Ridewatches

 * Watch used:
 * Zi-O
 * Zi-O, GrandZi-O
 * Geiz
 * Geiz, GeizRevive
 * Rider Armor(s) used:
 * Zi-O
 * GrandZi-O
 * Geiz
 * GeizRevive Goretsu
 * Kamen Rider(s) summoned in Grand Zi-O:
 * to be determined

Miridewatches

 * Watch used:
 * Woz
 * Woz
 * Futurering(s) used:
 * Woz
 * to be determined

Other Form Changes

 * Den-O - Sword Form
 * Zeronos - Altair Form

Errors

 * to be added