Junko: Captain Marvelous...

Akame: Kamen Rider Decade...

Junko: These two have fought in the past but never in an all-out battle to the Death!

Dizzy: The stage is set and the combatants are ready...

Junko: It's time for a Death Battle!

Kamen Rider Decade drove his bike into an abandoned warehouse where Captain Marvelous waited on him.

Marvelous: Decade.

Decade: Captain. I think it's time we ended things shall we?

Marvelous: Right. Let's make this showy!

Marvelous: Gokai Change!

<Gokaiger!>

Marvelous: Gokai Red!

Decade: Henshin!

<Kamen Rider: Decade!>

They both turned to their base transformations as they took out their blades and jumped at each other. They swung their swords and clashed before landing on the ground. Decade then turned his sword into a gun as Marvelous pulled out a pistol. They both fired and caused an explosion between them that launched both of them back. Marvelous then rolled to his feet.

Marvelous: Gokai Change!

<Biomen!>

The captain changed forms as Decade stood to his feet.

Decade: Well what do you know? I can do that too.

<Kamen Ride: Faiz!>

Marvelous: Bio Sword!

They both took up their blades and dashed at each other. Decade swung his sword first but Marvelous dodged it as he went for a wing of his own. Decade took the strike as sparks flew.

Marvelous: Fire Sword!

His sword caught fire as he swung it again and sent Decade flying into a bunch of crates. 

<Kamen Rider: Kabuto!>

Decade suddenly started moving at blinding speeds, striking Marvelous several times with his blade. Marvelous recovered right after.

Marvelous: Gokai Change!

<Kakuranger!>

He turned into a ninja as the two of them started moving at blinding speeds all around the warehouse, clashing blades all over the place. Decade swung his sword once more and Marvelous jumped into the air. They both pulled out laser guns and fired at each other, once again creating a massive explosion between them. 

Marvelous landed on his feet and swung a bunch of shurikens at Decade then threw a massive one. While all the smaller shurikens hit Decade, he was quick to blast the bigger one away. e then dashed at Marvelous and swung his sword, but Marvelous used a substitution technique to dodge it.

Decade: What?!

Suddenly, Decade's gun was shot out of his hand. He turned to see Captain Marvelous standing behind him.

Marvelous: Cloning Technique!

He made three clones of himself, all of which went to attack him. Decade ran at the clones and took them down in seconds. 

Marvelous: Flaming Whirlwind Art!

He fired a huge wave of fire that Decade quickly jumped over. Decade then went for a downward swing of his blade which Marvelous blocked as Decade ran him into the wall behind him.

Marvelous: That all you got? Cause I'm just getting started!

Marvelous kicked him away and transformed once more.

Marvelous: Gokai Change!

<Denzaimen!>

Marvelous took out his Denzai Stick as the two of them clashed once more. Decade swung his sword but Marvelous dodged it before hitting Decade with a ton of electric strikes. Decade then went for a swing of his own and sent Marvelous flying back. As he rolled on the ground, Marvelous went to transform again.

Marvelous: Gokai Change!

<Magiranger!>

Marvelous quickly stood up and flew into the air as his wand turned into a sword.

Marvelous: Red Fire!

He was suddenly covered in a fiery phoenix he dashed at Decade, who quickly went to block as the collision caused the entire warehouse to blow up and for Decade to be sent flying outside. He stood to his feet looking at the flames in front of him.

Decade: Alright, that's it.

<Kamen Rider: Blade!>

Marvelous: Gokai Change!

<J.A.K.Q!>

Decade watched as Marvelous jumped out of the flames and hit him with a dropkick. As Decade was sent back a bit, he ran back at Marvelous and swung his sword. Marvelous dodged it and went for a punch that Decade quickly dodged. They both went for a strike of their own and clashed, knocking each other back. Marvelous took out a bow and started firing atomic arrows which Decade deflected with his sword. 

Decade: Lightning Slash!

Marvelous used the bow as a whip and Decade swung his sword. The two of them clashed as Decade transformed.

<Kamen Rider: Hibiki!>

Marvelous: Gokai Change!

<Battle Fever!>

Decade: Demon Art Technique... Demon Fire!

A mouth formed in Decade's mask as he fired several fireballs that Marvelous dodged. The Captain swung his bats and smacked Decade in the face with them. He went for another swing, but Decade blocked them with his pair of drumsticks. 

Decade: Demon Club Technique... Raging Fire Sword!

His drumsticks turned into flaming blades as he slashed Marvelous in the chest, sending him flying back and crashing into the ground.

Marvelous: Geh! Dame... Gokai Change!

<Gekiranger!>

Decade: Demon-Fighting Technique... Demon Claw!

Decade's hands formed claws as he swung them at Marvelous, who quickly dodged them and swung a pair of nunchucks, smaking Decade in the face. Decade swung his claws again, but again Marvelous dodged before kicking Decade and sending him flying back. Decade quickly recovered and transformed.

<Kamen Rider: Ryuki>

He looked at Marvelous as the two had themselves a staredown. Decade then pulled out a card.

Decade: Guess I'll use this.

He inserted it into his belt as a dragon appeared above him.

Decade: Attack Ride... Advent!

Marvelous: Geki Waza... Ho-Ho Dan!

A tiger appeared above Marvelous as the two flew at each other and clashed, creating a massive explosion that knocked them back, reverting them back to their base forms.

Marvelous: Heh...you're a tough one...

Decade: Right back at you... but I'm not done yet...

Marvelous: Took the words right out of my mouth... Gokai Change!

<Gokaiger!>

<Kamen Rider: Decade!>

They both went back to their base transformations as Decade pulled out a bazooka and fired it at Marvelous, who was running past the explosions before swinging his sword. Decade quickly went to block it as the bazooka was cut in half. Marvelous then pulled out a pistol and shot Decade in the head, creating a massive explosion that knocked Decade back.

Marvelous: Time to end this!

<Final Wave!>

Marvelous: Gokai Blast!

Decade: Not so fast!

<Attack Rider: Blast!>

Decade pulled out his gun and they both fired incredibly powerful blasts of energy that caused a huge explosion between them. 

Marvelous: Gokai Slash!

Decade: Dimensional Slash!

They both dashed at each other and went for an extremely powerful slash of their swords, clashing and creating a massive shockwave around them. They both started to breathe a bit heavily.

Decade: What's wrong? You look exhausted.

Decade kicked Marvelous back and went to transform again.

<Final Kamen Rider: Decade!>

He turned into his final form as he starred down Marvelous.

Marvelous: Damn.. just who are you anyway?

Decade: Me?  I'm just a passing-through Kamen Rider. Remember that!

Marvelous: Heh... in that case... time to make this Showy! Gokai Change!

<Ten Gokaiger! Congratulations!>

Marvelous: Time to end this! Final Galleon Strike!

Marvelous unleashed a bunch of projectiles, firing them all at Decade who was dodging them and had jumped into the air. Marvelous dashed at him to go for a final strike.

Decade: Dimensional Kick!

Decade went for an incredibly powerful kick as they both struck at each other, only for Decade's kick to go straight through Marvelous, smashing him into pieces. As Decade landed on his feet, a huge explosion erupted behind him as he went back to his base form.

Decade: Heh...

Without even turning around, he went ahead and moved to a different timeline.

Junko: Phew... I thought that one was never gonna be over. We may have rushed on the analysis but we never rush these fights.

Dizzy: Both these fighters were incredibly skilled with transformations that could counter one another, and while Marvelous had many more forms than Decade, he still fell short.

Junko: Yeah, Marvelous had the experience but Decade was just much smarter than him. And while Marvelous as a human is stronger than Decade as a human, their transformations are a whole different story.

Akame: Um Junko... Marvelous isn't human...

Junko: You know what I mean! Sure Marvelous has fought these Angel Ranger guys who had taken down enemies whose power reach the edge of the galaxy. And he even scales to other rangers who have taken on universal-level threats... but Decade has taken on similar opponents and more. And let's not get into his complete form, where he's powerful enough to threaten the entire infinite multiverse. And we haven't even touched his Complete Form 21 since that's pretty much overkill!

Dizzy: Even if Marvelous did kill Decade, the Kamen Rider would just come back to life and keep fighting unless you kill everyone who knows Decade, since as long as one person know him... he'll continue to reincarnate.

Junko: So in the end the Captain was Marvelous but needed to witness the loss of the Decade.

Dizzy: The winner is Decade.

Winner: Kamen Rider Decade

+Stronger

+Faster

+More Powerful Transformations

     -Some weaker transformations as well

+Smarter

-Fewer Weapons

-Less Experience

-Fewer Transformations

Loser: Captain Marvelous

+Stronger in base

+More transformations

     -Some are weaker than others

+More Weapons

+More Experience

+More Showy

-Slower

-Smart but not as smart

-Weaker final transformations

-No Straw Hat

Kokonoe: For crying out loud, Junko... Captain Marvelous isn't Luffy. 

Junko: Still a good enough call back. Now it looks like it's the beginning of the month... and you know what that means.

Kokonoe: Let's get this ovr with It's my turn.

Junko: Next time on Death Battle!

Mister Fantastic vs Kokonoe Mercury

(Marvel vs Blazblue)

Neptune's Trivia(Battle #155):

-Connections: The Two Celebratory Tokusato main characters who carry the legacy of the two most famous tokusato series in Japan and are some of the most powerful characters in their series. They also have all of the powers from Every single Sentai/Rider from the past, present, and the future and can transform into said Sentai/Riders. Also the Super Sentai vs Kamen Rider rivalry, and both were created by Shotaro Ishinomori.

-This battle was suggested by MLPFan001 and the thumbnail was made by SandraOsborne1 

-As soon as Captain Marvelous was announced, two more requests for him were brought in the next day

-This is actually the first time either of them had appeared on Death Battle though Kamen Rider has been suggested for Death Battle in the past

-Originally a different battle was supposed to be done, but Junko messed that up