This article is about a/an episode in Kamen Rider Zi-O.

2019: Apocalypse (2019:アポカリプス Nisen-jūkyū: Apokaripusu) is the forty-ninth and final episode of Kamen Rider Zi-O. It is the third and final part of the Kamen Rider Decade tribute arc. It features the full debut of Kamen Rider Tsukuyomi after her brief appearance towards the end of the previous episode, the revivals of Heure and Ora (the two of them having died in episodes 45 and 46 respectively), Sougo's transformation into Ohma Zi-O and Swartz's death.


Bear witness to the birth of Kamen Rider Tsukuyomi! However, this miraculous power will be used in an unexpected way! Did Tsukasa and Sougo's plan ultimately fail?! As the end of the world is approaching, much to the contrary of what the situation might show, Sougo's heart remains terrifyingly calm! Because hidden deep within him lies his secret resolution...


"All thanks to Sougo Tokiwa's efforts, Tsukuyomi has become a Kamen Rider. However, her choice to defect is unforeseen. This is the very last page...until the end of the world..."
Black Woz[src]
Tsukuyomi succeeded at transforming into Kamen Rider Tsukuyomi! But, she stops time and kneels to Swartz, pledging her loyalty to her brother, betraying Sougo and her friends. With that, they escape.

Sougo, Geiz, Woz and Tsukasa Kadoya return to 95 DO to discuss the recent situation. Tsukasa's original plan was to make Tsukuyomi a Kamen Rider because the cause of her world's destruction is the absence of a Kamen Rider there. Ideally, once Tsukuyomi becomes a Kamen Rider, she would return to her homeworld and then create a link with Sougo in his world, uniting both. Still, this plan lacks the means to migrate billions of humans on Zi-O's world to Tsukuyomi's homeworld.

Meanwhile, in the city, Tsukuyomi tells her brother about Tsukasa's plan. Swartz agrees with the plan, especially after Tsukuyomi promises to support Swartz's rule as the king in the new world.

The following morning, Sougo has breakfast with Junichiro. The uncle tells him not to make this their last meal together, and that he should come home with his friends when everything is resolved. Before Sougo departs for the final battle, Junichiro presents him with the repaired 20 Ridewatches, citing that for a master watch repairer like him, there is no watch he cannot repair.

In the city, the horde of Kamen Rider kaijins are wreaking havoc everywhere. Geiz, Woz, Tsukasa, and even Daiki Kaito are fighting to protect the civilians, but the enemies are resurrected endlessly, overwhelming the four Riders. The situation becomes even worse when Swartz summons past Riders' final bosses. N-Daguva-Zeba brings down absolute darkness from Kurogatake Mountains, Evolto consumes people inside his black hole, Gamedeus begins infecting people with the Gamedeus Virus, and the Sagittarius Zodiarts and Utopia Dopant slaughter civilians.

With the help of Tsukuyomi, Another Decade defeats the four Riders, taking them out of the battle. Before he could go on, Sougo arrives with the newly-restored Grand Zi-O Ridewatch and summons Kamen Rider Build TankTank Form, Drive Type Formula, Ghost Ore Damashii, and Ex-Aid Maximum Gamer to assault Another Decade, disappearing as they finished their attack. After that, Sougo transforms into Grand Zi-O and summons OOO Tajadol Combo, Gaim Pine Arms, Wizard Infinity Style, and Double CycloneJoker Xtreme to aid him in battle, but the final bosses wipe the floor with them. Finally, with the combined strength of the final bosses, Swartz defeats Sougo too, reverting him to human form.

Swartz blasts Sougo with the intent to kill, but suddenly Geiz in his Revive Shippu form comes in its path and sustains fatal injuries. Sougo cradles the dying Geiz, and he finally confesses that he feels very happy returning to 2018 and befriending Sougo. Geiz finally calls Sougo by his name and asks him to become Ohma Zi-O, the strongest and kindest king he can be, before passing away. Stricken with grief, Sougo's Ziku-Driver transforms into the golden Ohma Zi-O Driver.

Sougo transforms in anger into Ohma Zi-O, rendering Woz speechless. In a deep growl, he orders the prophet to announce his ascension and he does so. Swartz laughs in elation at seeing the rise of the Demon King, because, with that, he can finally absorb Sougo's powers to rule the world. He begins absorbing said power but it backfires because Ohma Zi-O's power is the power of ALL Heisei Riders. As Swartz doubles in pain, he commands the final bosses to kill Sougo.

Ohma Zi-O begins the most one-sided battle of his life when he destroys all final bosses in one hit and even thins out the horde of Riders' enemies easily. In a desperate attempt, Swartz tries to retreat to his world and use what little of Ohma Zi-O's power to rule as king, but Tsukuyomi stabs him from behind while saying that they don't need a king like him. As the enraged Swartz kills Tsukuyomi, Sougo howls in anger and executes the Ohma Zi-O Hissatsu Geki to finally kill Swartz.

Before their existences are erased, Tsukuyomi pleads her brother to stop his foolish actions as he can't defeat the strongest and kindest king, Sougo. Swartz is finally erased... Before she disappears, Tsukuyomi entrusts Sougo with the future of their two worlds.

Woz approaches Sougo and pledges his everlasting loyalty to the newly crowned king. However, Sougo doesn't want to rule as he intends to destroy this timeline. Before he can do so, he is brought before his future self. The old Demon King asks if Sougo is willing to discard his dream to be a king and Sougo answers that he doesn't want to become a king if his friends are dead. With that answer, Ohma Zi-O's existence is finally erased for good.

As Sougo destroys the timeline, Tsukasa and Kaito are watching from a distance. Tsukasa says that his adventure in the World of Zi-O is finally ending and he looks forward to another adventure in the future. After that, the united world re-separates into the 20 Heisei Rider worlds and Tsukuyomi's homeworld, restoring the timeline.

In this new world, Sougo returns as a normal high school student at the end of the 2018 summer vacation. As he departs for school, he meets his school mates, Geiz and Tsukuyomi. Ora and Heure are also here too, having become Sougo's underclassmen. Sougo and co. then go to school together, surely to lead an ordinary life...

"An ordinary high schooler, Sougo Tokiwa awaits a future where he becomes the demonic king of time, Ohma Zi-O. Or will he? We don't know yet. For on this day forward... A new history, different from this book, will need to be scribed."
Black Woz[src]


Guest Cast

Suit Actors

Forms and Collectibles Used



  • Watch used:
  • Form(s) used:
    • Woz
      • WozGingaFinaly

Rider Cards

  • Card Used:
    • Kamen Rider Decade:
      • Kamen Ride: Decade
      • Attack Ride:
      • Form Ride:
      • Final Form Ride:
      • Final Attack Ride: Decade
      • Final Kamen Ride:
      • K-Touch:
    • Forms:
      • Decade
    • Kamen Rider Diend
      • Kamen Ride: Diend
      • Attack Ride:
      • Final Form Ride:
      • Final Attack Ride:


  • In the credits, Masahiro Inoue and Kimito Totani do not have the names, Kamen Rider Decade and Kamen Rider Diend next to their characters names even though they were transformed in this episode.
  • When Decade inserted the Final AttackRide Card to Neo Decadriver, the text displays "AttackRide: Slash" on the buckle, while it announces "Final AttackRide: De-De-De-Decade!".
A Grand Error
  • In the GrandZi-O transformation sequence, the CGI pedestals are placed perspectively wrong along with Sougo's green screen lines weren't cleaned well.
  • The GrandZi-O Ridewatch was reformed even though the Decade Ridewatch isn't in Sougo's possession anymore and was returned to Tsukasa in episode 47.
    • Although, GrandZi-O did fight simultaneously with Decade against Another Zi-O II in the same episode as well. This may indicate that the GrandZi-O Watch is usable as long as the original Ridewatch or power stays intact.
    • In addition to that, Decade Ridewatch is also present among the watches absorbed by Ohma Zi-O.


Zero-One Ridewatch CS
  • Closing Screen Ridewatches:
    • Kamen Riders: Zi-O, Geiz, Zero-One
    • Ridewatches:
      • Zi-O: Zi-O
      • Geiz: Geiz
      • Zero-One: Zero-One
    • This is the only Closing Screen that doesn't just use Zi-O's standby sound, but also Zero-One's.
  • Count at episode end
    • Watches in Zi-O's possession: Zi-O, All Heisei Riders, Kodama, Zi-O II, Zi-OTrinity, Ohma Zi-O, Phone, Bike
    • Watches in Geiz's possession: Geiz, GeizRevive, BiBill, Phone, Bike
    • Watches in Tsukuyomi's possession: Tsukuyomi, Phone, Taka
    • Watches in Woz’s possession: Woz, Shinobi, Quiz, Kikai, Ginga, Phone
  • This episode features the return of GrandZi-O Ridewatch and Kamen Rider GrandZi-O, the form and Ridewatch having been lost in episode 47. It also features the final time and full version of GrandZi-O's transformation jingle, unlike episode 40, the "Rider Time" part is added.
  • This is the first time since Gaim's finale to have the main Rider using his final form on the final episode.
  • As with many series' final episodes, the opening sequence is skipped. However, the opening song plays during a scene towards the end.
  • Gamedeus, out of the four villains standing beside Another Decade, is the only villain not to be the Final Boss of his respective season as the role belonged to Kamen Rider Cronus.
    • The same can be said with Evolto. although Evol Cobra (Phase 1) appears amongst the four villains, Evolto technically used Ultimate State in Build's finale.
  • This episode has a few similarities to Kamen Rider Ex-Aid's season finale.
    • Sougo screaming in rage is similar to how Emu screams in rage before punching Cronus.
    • A new trinket that features the next Rider that is being presented at the end of the episode.
  • This episode also has some similarities to Kamen Rider Build's season finale.
    • Both lead riders achieving their Extra Final Forms.
    • Both the worlds are reset and only a few Riders remember the original world's events.
    • The identities of the same Rider have a conversation in mind and one of them appear to fade away (Sento and Takumi for Build, current and initial Sougo for Zi-O).
    • Instead of the successor Rider, a Ridewatch makes an appearance (albeit, this time, in the closing screen rather than the episode proper).
    • Evolto is present in the final battle.
  • The scene of what happened after N-Daguva-Zeba releases the darkness is directly cut from Decade episode 3.
Geiz Revive Shippu helmet broken

Geiz's broken helmet from this episode

  • GeizRevive Shippu's broken helmet, revealing part of Geiz's face is reminiscent of several other scenes featuring broken helmets throughout Heisei Rider series.
  • Geiz's death in this episode is similar to Ren Akiyama's death in Kamen Rider Ryuki Special: 13 Riders and Rider Time: Kamen Rider Ryuki, both having them heroically sacrificing themselves in the arms of a lead Rider.
  • Sougo's transformation into Ohma Zi-O in this episode is a callback to Yusuke Godai transforming into Ultimate Form in the penultimate episode of the latter's series, as they both transform into their most powerful forms (Ultimate to Kuuga, Ohma Zi-O to Zi-O) which had the potential to turn them evil to defeat the final villains of their respective series, but in the end they maintained control over said forms and remain good.
    • Coincidentally, N-Daguva-Zeba is present in both battles.
    • It is also a callback to Yusuke Onodera transforming into Ultimate Form in Kamen Rider × Kamen Rider W & Decade: Movie War 2010 to fight Decade Violent Emotion. Coincidentally, both of the heroes transform to defeat an opponent with Decade's powers.
    • Furthermore, both of their colorations are similar. (Black body with Gold ornaments and Red visors)
  • After Ohma Zi-O's transformation, all the Heisei Era Ridewatches (including the ones that did not make any appearance previously) make a cameo appearance as they fuse into him.
    • However, it wasn't stated if the occurrence of those Ridewatches meant that Rider powers from their owners were stolen in this process or not.
  • Throughout the episode, Sougo and Woz state that Ohma Zi-O has the powers of "every Kamen Rider" instead of the usual Heisei Riders or simply Riders. This hints that Ohma Zi-O was also able to drain Ridewatches from other Eras and A.R. Worlds and present-day Riders as well, but their Ridewatches weren't shown.
  • It is not explicitly revealed nor hinted if Michal Minato was revived by Sougo's timeline reset and if revived, remembers the original timeline or not.
  • It is not clarified if half of the Decade's powers absorbed by Swartz were returned to Tsukasa (or even Ohma Zi-O) following Swartz's defeat or were destroyed along with Swartz.
  • The idea of resetting the timeline and having everyone involved in the story revived with no memory of the series' events to lead normal and peaceful lives is a nod to the endings of Kamen Rider Ryuki and Kamen Rider Build.
  • This episode marks the final appearance of Masahiro Inoue's portrayal of his role as Tsukasa Kadoya as his actor confirmed on his YouTube channel that his series regular role in Zi-O will be his last reprisal for a long while.[1]

External links


Community content is available under CC-BY-SA unless otherwise noted.