Pandora's Box, which contains incredible energy, has finally been opened.
The extraterrestrial entity Evolt has used its power to achieve his complete form.
Meanwhile, the memories of the Devil's Scientist, Katsuragi Takumi,
have resurfaced in the mind of Kamen Rider Build aka Kiryuu Sento.
My name is Katsuragi...
Katsuragi Takumi.
You're Banjou Ryuuga...
Where am I?
What's happened?
So Katsuragi Takumi's memories came back, huh...
Stalk!
No... you're Evolt now?
Phase 4 is complete.
Thanks to you guys, I'm back to my complete form.
That's... his true form...
What was that?!
You still want more?
Isn't transforming a second time supposed to be a big strain?
AWAKEN!
CROCODILE!
CRUSHED! OOZING! OVERFLOWING!
GREAT CROSS-Z DRAGON!
Transform!
Did you think you could stand up to me after a beating?
How the hell is he so strong?!
Hey, don't give up.
If we work together again, we should be able to do this.
SCRAP FINISH!
CRACK UP FINISH!
READY, GO!
GREAT DRACONIC FINISH!
What?!
No one can match me in this form.
We need to retreat... and regroup.
Yeah... wise decision.
I'm capable of even further evolution now.
Time to enter the final act.
Mad World
Evolt.
I see you've taken Isurugi Souichi's body again.
Nah, I don't need a host body anymore.
This is just copying his looks.
The real guy is still in dreamland.
From now on, I'm going to be this country's leader.
What's that supposed to mean?!
You can still be Prime Minister.
But...
You will be my puppet for the rest of your life.
Are you mocking me, Nanba Juusaburou?
I think not!
Y'know, I could just kill you right now.
I'll give you until tomorrow.
I'm hoping for a good answer!
Oh, no! This is my face now?
How is this physically possible?
So... he really only has Katsuragi Takumi's memories?
Yeah...
Then...
The person we're dealing with right now is that Devil's Scientist...?
I think "devil" is a bit uncalled for.
I know you, Isurugi Misora.
When I was with Faust, I was the one who had you purifying bottles.
Don't take it personally, please.
Purifying them was necessary for the development of the Rider System.
It was all in the name of scientific progress.
You bastard...!
The thing that I don't understand is your presence, Banjou Ryuuga.
Why are you helping me, when you have Evolt's DNA?
I was trying to defeat you and Stalk...
I don't have any of Evolt's memories.
So I'm not your enemy.
Really, now? You could simply be acting the clown.
What?!
Mr. Himuro...
Katsuragi.
Administering any more gas will result in you being destroyed
in the event that you're beaten again.
Anything for Nanba Industries!
Working hard, huh?
Evolt...!
I actually wanted to talk with you.
How is there another Evol Driver...?
It's for you. Come and work for me.
I happen to think you're quite the scientist.
That's absurd!
I didn't think war would ever actually break out...
Things turned out just as you had planned.
I created the Rider System because it was my father's last wish,
so it could be used to defeat the extraterrestrial entity, Evolt.
But you wanted it for military use...
I was wrong.
After I was hit with the light of Pandora's Box, I thought everyone was out to get me.
I wasn't in my right mind.
I don't care about your excuses.
That doesn't change the fact that we're both responsible for all of this...
For this whole catastrophe.
I know.
That's why I'm ready to accept any punishment coming to me.
But right now...
The country itself isn't functioning anymore.
Which is why I've decided to fight.
To rebuild the country...
What are you talking about?
I had no intention of creating a tool for war.
But by the time I realized what you were after, it was too late!
So I had to convince myself!
That the Rider System was necessary to defeat Evolt!
That sacrifices were necessary for its sake!
I sold my soul to the devil.
And your recriminations aren't going to be enough, after all this time.
I was a fool to have trusted you.
Utsumi...
Evolt is trying to seize control of Seito.
He wants to hold the reigns, in place of Nanba Heavy Industries.
But we don't have enough power to stop him.
And you're suggesting an alliance?
The answer should be obvious!
If Evolt has control, Japan will...
No, the world itself could be destroyed!
I know that's not what you want!
Please! Lend us your help!
Evolt needs to be defeated...
What purpose does the Rider System serve, otherwise?
Well, he likes to space out while working on inventions, like Sento does...
It's possible...
He might not get his memories as Sento back.
If that's true...
That'd mean he'd never remember the time we spent together.
Where have you been?
I met with Utsumi.
Evolt is going to only get stronger.
If we want to defeat him, it has to be now.
The only choice is to work with them, then?
I'm not going.
Grease...
Seito took my home and my friends from me.
I'm not about to help them.
So, what's your answer?
Evolt...
This is my answer to your ultimatum.
I see.
You must be desperate to cling to that perch of yours, huh?
GEAR REMOTE CONTROL!
FUNKY!
Mistify.
ENGINE RUNNING GEAR!
REMOTE CONTROL GEAR!
Fair enough.
OVER THE EVOLUTION!
Today, you all die.
COBRA! RIDER SYSTEM!
EVOLUTION!
ARE YOU READY?
Transform.
BLACK HOLE! BLACK HOLE! BLACK HOLE!
REVOLUTION!
What?!
You pitiful clowns.
Do you have any idea how lucky you were, as humans,
to be born into a such an affluent society?
Why...? Our strength was raised to its limit...
Rai!
Himuro...
We're only helping you for today.
This is in order to restore order to the country.
Did you think ganging up on me would give you a chance of winning?
Wishful thinking!
It's too high-performance, my body can't keep up!
You don't have what it takes to use the latest version of Build.
That can't be!
I was the one who built Build!
I made it to beat you!
Then how about this?
Why...?
Alright, that's enough playing around.
Now to kill you, one by one.
What is that?!
Bro!
It's up to you, now!
Anything... for Nanba Industries!
Rai!
Rai...
GEAR ENGINE!
FUNKY MATCH!
Mistify...
FEVER!
PERFECT!
ARE YOU READY?
RED-HOT MUSCLES!
CROSS-Z MAGMA!
HOTHOTHOTHOT!
You're hurt badly too...
Why...?
Why would you go so far...?
You can change forms, but not the outcome of the fight.
Banjou...
This is goodbye.
READY, GO!
BLACK HOLE FINISH!
CIAO!
Hey... hey!
Why'd you save me?
Fighting for someone's sake...
It wasn't bad.
I should tell... my brother...
Another life lost...
Why does it keep happening?!
And it's all thanks to that Rider System you built.
Now then, it's time I start wrapping things up.
And after I gave you a chance, too...
Money... I can give you money...
You can have all of Nanba Heavy Industries!
Just... p-please, don't kill me!
Spare me...!
Begging for mercy, huh...
You humans are so incredibly disgusting.
I love it!
And I particularly love humans like you!
Utsumi~
President!
Now, let's have your answer.
Do you want revenge for Nanba, or to swear your loyalty to me?
Utsumi...
In that case... There's only one answer!
I swear my loyalty to you!
You humans never fail to entertain!
I'm not even gonna destroy this planet anymore!
Utsumi.
EVOL DRIVER!
BAT! ENGINE!
EVOL MATCH!
ARE YOU READY?
Transform!
BATENGINE!
Now, fight to your heart's content...
Kamen Rider Mad Rogue!
Kamen Rider Build!
N
E
X
T
He needs to be defeated, before he awakens as Evolt.
With the Rider System causing chaos...
Why not try trusting your friends?
With the Rider System causing chaos...
It's complete... the ultimate power-up item!
A brilliant invention will surpass it!
The righteous hero is back in action!
The Unstoppable Genius