The 2004-2005 series of Kamen Rider and the fifth installment in the Heisei Era.Ten thousand years ago, a massive battle royale took place between the immortal Undead monsters, each one representing a species of creature on Earth. The Human Undead was the victor, and as a result the human race was allowed to multiply and populate the Earth as its dominant species. Meanwhile, the losing Undead were sealed into cards to slumber for eternity.Fast forward to the present day. The Undead have been released from their confinement and have started a new battle royale for dominance over the Earth. To counteract this, the secret organisation BOARD has created the Rouse Card System and recruited two individuals- Kazuma Kenzaki and Sakuya Tachibana- to seal the Undead on behalf of the human race by merging with Sealed Category Ace Undeads to become Kamen Riders. Kenzaki merges with the Sealed Category Ace of Spades to become Kamen Rider Blade, while Tachibana uses the Sealed Category Ace of Diamonds to transform into Kamen Rider Garren.Unfortunately, BOARD is swiftly destroyed by an Undead attack and Kenzaki finds that Tachibana has apparently betrayed the human race. A second opponent is found in Hajime Aikawa, an introverted photographer who hides a deadly secret: he is actually an Undead who can use the Sealed Category Ace of Hearts card to transform into Kamen Rider Chalice without the use of an external Rouzer device. The quartet of Riders is completed with Mutsuki Kamijo, who is chosen by the Sealed Category Ace of Clubs card to become Kamen Rider Leangle, only to have the evil Spider Undead sealed within slowly take over his mind and create a new, deadly enemy.The show's slogan, "Now your power is at its peak", is a reference to a comment made by one character in regards to titular character Kazuma Kenzaki: that he reaches his maximum potential as Blade when he is fighting to protect others.Now has a Character Sheet.
Batman Gambit - Used to defeat the Titan Undead. It'd been impersonating the group the entire time, making them unsure of who they could trust and making it hard to find. Hajime seemed to lose control and assume his Joker form and Kenzaki seemed to be unable to finish him. So the Titan emerged to try and finish the Joker himself, only to be caught by Garren and Leangle. Hajime returns to human form and reveals that was what they were hoping for. He only pretended to lose control and Kenzaki pretended to be unable to stop him so the Titan, who as an Undead fears the Joker and wants him done away with, would try to finish him itself, walking right into their trap.
Becoming the Mask - Hajime, who assumed the appearance of the Human Undead and found himself enjoying his new life.
Big Bad - Hiroshi Tennoji. He isn't the final villain, but he was the one who unsealed the Undead and manipulates events from behind the scene the entire series, all in an attempt to become a God and rule the world.
Junichi Shimura/Kamen Rider Glaive/Albino Joker in the movie.
Big Damn Villains - Tennoji is beaten, but the Riders don't want to kill him, despite him still being a major threat, because he's defenseless at the moment. King of Diamonds is more than happy to do it for them.
Bittersweet Ending- Hajime is allowed to live on as a human, but the Sealing Stone still exists which means Kenzaki must keep as far away from Hajime as possible. Might also sort-of qualify as a Downer Ending.
Book Ends - The decks have these. The King Undeads are all bigger, badder versions of the corresponding Ace. For instance, the ace of clubs is a spider, the king is a tarantula.
Brainwashed - Mutsuki, falling under the influence of the Spider Undead.
Can't Catch Up - Kamen Rider Leangle, touted as the 'strongest Rider' early into his debut, lived up to that at first, but became woefully outclassed when the others got their Super Modes. He tried to catch up, but never did. Though it should be noted that he never quite falls so far behind that he's useless, which ironically shows how his Ace Form was indeed the strongest.
Card Battle Game - Has elements of this: each Undead is sealed into a card that can then be slashed through a Rouzer to activate the card's special powers. Using certain cards in succession would activate a Rider's Finishing Move.
Chekhov's Gun - The password for the BOARD computer, "Double Joker".
Cooking Duel - For a little added flavour, this one was takoyaki note Toasted pastry balls with chunks of octopus vs taiyaki note Toasted fish-shaped waffles usually with jam, scored by customer sales.
Deadly Upgrade - Blade's King Form. This is because of a glaring flaw in the overall Rider System: Kenzaki's overly-high fusion ratio caused the Blade System to exceed its perimeters and fuse his DNA with all 13 sealed Undead associated with the suit of Spades, instead of just the Category King. Because of this, extended activity in King Form raises his fusion ratio, which would eventually mutate him into a Joker-type Undead.
Chalice's Wild Form.
Death by Origin Story - The fate of Amane's father could be considered this, since it ties in directly with Hajime's origins. Double subverted later on when Yoshito Hirose, presumed dead after releasing the Undead in the first place, turns up alive - only for that 'Hirose' to later be revealed to be a Trial monster himself.
Driven to Suicide - Hajime attempts to kill himself after he can no longer control himself and prevent him from carrying out the Joker's destiny to destroy the world. But being an immortal Undead, this fails.
Evil Albino - The Albino Joker. He's actually even worse than the normal Joker.
Evil Counterpart - Leangle's Rider System was created by Karasuma when he was forced to work with Undeads. Albino Joker works out to be an evil counterpart to the normal Joker Undead—lacking any of Hajime's woobish tendencies.
Fun with Acronyms - BOARD stands for the "Board Of Archaeological Research Department.
Fusion Dance - The Rouse Systems work by merging the user's DNA with that of the Catagory Ace Undead. Though normally the human remains in control. Leangle has it rough because the Spider Undead was improperly sealed and can control him to some degree.
Good Feels Good - The Tarantula Undead feels this way due to his love for human compassion.
Go Out with a Smile - According to Hajime's flashback, the Human Undead did this when he willingly allowed himself to be sealed.
Tarantula Undead to save Mutsuki from being controlled by the Spider Undead. Although it didn't take until MUCH later on when Tiger Undead did the same.
Hajime in the movie, who switches places with Amane as the Albino Joker's power source so Kenzaki can destroy it and weaken the Albino Joker, killing Hajime in the process.
Humans Are Special - Humans have a great deal of traits that the Undead didn't start out with, such as compassion and caring about others. Some Undead who can assume human form ,such as the Tarantula Undead and Hajime discover this and perform a Heel-Face Turn as a result of finding they actually like these traits.
Last Name Basis - Kenzaki, Tachibana, and Hirose are almost never called by their given names.
Late-Arrival Spoiler: Decade and most social websites let you know that there is a Joker Undead let alone who The Joker Undead is.
Let's You and Him Fight - Hiroshi uses his crossbreed Titan Undead to do this with both it's poison and shapeshifting abilities in an attempt to get the Riders to destroy each other. The Riders get wise and set up a fake battle with Hajime's Joker form in order to lure it out so it can be defeated.
Super Mode: Blade's King Form and Chalice's Wild Form.
Mythology Gag - Sakuya Tachibana (Kamen Rider Garren) shares his surname with the original Kamen Riders' mentor, Tobei Tachibana, alluding to his role as the most senior Rider in this season.
The red scarf from the Blade Vs Blade video, which nobody but the audience can see.
And Sakuya's former colleague Kiryu had an accident in which one of his arms had to be replaced with a mechanical appendage. Kiryu later retrofits it to release lethal electric currents, thereby referencing both Riderman and Stronger.
Instead of a spider monster in the first episode, we have a spider monster as a recurring villain of sorts, slowly turning Mutsuki evil despite being sealed in card form.
Hajime's Identical Stranger steps into the Cooking Duel with a ridiculous suit of armor, which he calls his Ultimate Form: a term that originated in Kamen Rider Kuuga, referring to the lead Rider of each season's final Super Mode. Not to mention that the armor was mostly black and gold just as Kuuga Ultimate Form was.
Also from Kuuga: the Undeads' belt buckles cracking open upon defeat happened to the Grongi as well (but are a valid plot device this time.)
The story parallels Kamen Rider Ryuki in several ways - ignoring the obvious use of cards, Riders in Ryuki and Undeads in Blade must fight and kill each other until one is left, and the last few episodes see the world swarmed with thousands of bug monsters for related reasons.
Oh Crap - The first time Kenzaki fights a "Trial" (artificial creatures created from hybrids of human and Undead DNA), he fells it with the Lightning Sonic. As usual, he throws a Blank to attempt to seal it... the Blank is absorbed instead.
The first time Leangle uses his 'Remote' ability on other Rider's cards.
The Only One: BOARD gets ransacked in the first episode. We start the series with two members (one being our hero) and a mysterious, unaligned Rider who considers everyone his enemy as the only good guys who are alive and free, and a lot of questions as to what is really going on that they have to solve on their own. At least they got to salvage some of the lab equipment (most notably their monster detector.)
Outside-Context Villain - The Albino Joker in The Movie. Having sealed every Undead already with there being no indication of there being another one, he comes out of nowhere and what really throws them off is how intelligent he is compared to the normal Joker, who in his natural state is a raging beast. By the time they figure that out, he's already played them like fiddles and gotten what he wants.
Panthera Awesome: Lion Undead/Blade's 3 of Spades Beat Lion, Jaguar Undead/Blade's 9 of Spades Mach Jaguar and Tiger Undead/Leangle's Queen of Clubs Absorb Tiger.
Rhino Rampage - Rhinoceros Undead/Leangle's 4 of Clubs Rush Rhinoceros.
Rule of Funny - Tachibana and Mutsuki whipping out their Rouzers untransformed in Blade Vs Blade (followed by shooting Kazuma in the butt and whopping him on the head respectively). Shiori Hirose can lift heavy objects with one hand. Clearly there is only one reason.
Scary Scorpions- Scorpion Undead/Leangle's 8 of Clubs Poison Scorpion, again.
Sealed Evil in a Can - Joker, who is sealed by Hajime's Sealed Category Ace of Hearts and the Sealed Category Two of Hearts/Human Undead. Later is unsealed due to Blade's King Form and then resealed by Using the Category King of Hearts to enable Chalice's Wild Form
Shoot the Dog - Tachibana attempts to kill Hajime to save the world from being overrun with monstrous roaches.
Smoke Out - Squid Undead/Leangle's 9 of Clubs Smog Squid.