A special episode of Kamen Rider Gaim which introduced a new version of classic Toku hero Kikaider, who would soon appear as the protagonist of Kikaider REBOOT.
Kouta and Mai meet a young man who can remember nothing about himself other than his name, Jiro. During a rain storm, Kota tries to pull Jiro out of the rain, but noticed his hand feels like metal instead of skin, bringing up the question if Jiro is a robot. Elsewhere, Ryoma looks over the schematics for an android developed by a colleague. Its model name is Hakaider.
- All Animals Are Dogs: Jiro is basically the Kazuraba siblings' dog for the episode.
- Amnesiac Hero: Jiro loses his memory thanks to a ridiculously convenient bolt of lightning.
- Ax-Crazy: As Ryoma finds out, just being Hakaider makes you this.
- Bad Boss: Ryoma/Hakaider, as that Mook Horror Show in the tunnel can verify.
- Breather Episode: While the previous episode was a Wham Episode that ended on a Cliffhanger, this is a special crossover which interrupts the plot with a Whole Episode Flashback.
- Catchphrase: Hakaider - "Hakai (Destroy)... hakai... Hakaider!!"
- Composite Character: Hakaider is introduced as vacant robotic body which gets controlled by Ryoma's brain.
- Curb-Stomp Battle: Whilst in the body of Hakaider, Ryoma wipes the floor with a group of Kurokage Troopers including four Suika Arms units.
- Deus ex Machina: That Lightning Bolt of Amnesia that befalls Jiro is basically this trope, setting things up for the crossover plot.
- Duality Motif: Kikaider's red half represents evil, while it is his blue half that represents good.
- Early-Bird Cameo: This episode aired about a week before the premiere of the Kikaider REBOOT movie.
- Evil Counterpart: True to the original series, Hakaider is established as one to Kikaider.
- Evil Is Not a Toy: Hakaider, as Ryoma finds out.
- Evil Laugh: Hakaider gives a rather robotic cackling one.
- For the Evulz: Ryoma decides to place his brain in the robot for reasons that basically amount to "I'm bored and a friend of mine gave me a dangerous new evil toy to play with."
- Hand Cannon: Hakaider carries a BIG pistol.
- Lethal Chef: Jiro. Since he can't taste, all of the food he makes for Kouta and Akira is too salty.
- Literal-Minded: When Kouta shows Jiro his childhood photo with his puppy, Jiro goes out and findd an identical puppy as he saw in the photo.
- The Mind Is a Plaything of the Body: Ryoma's personality changes into more and more Ax-Crazy the longer his brain occupies Hakaider's body, something that he found out much to his horror when he returned to his human body.
- Mook Horror Show: A band of Kurokage Troopers get the stuffing beaten out of them by the increasingly bloodthirsty Ryoma/Hakaider. It is only thanks to the intervention of Malika that their lives are spared.
- Motive Decay: Ryoma originally wanted to collect data then his programming made just do things For the Evulz.
- Noisy Robots: Most of Kikaider's movements are punctuated by mechanical sounds.
- Product Placement/Reality Subtext: This episode includes a scene where Kouta's sister gets tickets for a movie titled REBOOT and the episode ends with her looking at those tickets, with the poster showing what looks to be Pinocchio, giving the nod to Kikaider's influence.
- Reset Button: Both In-Universe and plot-wise. Rebooting Kikaider makes him forget his time with Kouta allowing him to move on to his own plot and to provide an excuse for him not to get entangled into Gaim's plot thus making his episode not really matter in the overall plot.
- Robotic Psychopath: Ryoma mixed with Hakaider programming could only create this.
- Sanity Slippage: Ryoma/Hakaider more crazed the longer he's active.
- Superpowered Evil Side: Hakaider somehow makes Ryoma worse.
- Whole Episode Flashback: Chronologically, this episode takes place two weeks prior to Demushu entering the human world. Evidence points to it taking place within episode 26, after Kouta talks to Mai about her concerns with him avoiding her, but before the two attempt to tell Zawame City about Helheim. This is supported by Kouta and Mai going shopping to replace and clean Drupers due to the incident in episode 25 regarding Oren ruining the place in an attempt to get Jonouchi back to Charmant.
- The Worf Effect: Ryoma proves Hakaider's worth by using the body to defeat a group of Kurokage Troopers including four Suika Arms units.
