Inside the lab of "Mu", Brain woke up to find himself shackled to the operating table.

Brain: SOMEONE PLEASE HELP ME! HELP!!! AAAAAAHHH!!!! HELP!

Leader of Mu: (*evil laughs*) Welcome Roidmude 003, Brain! We are "Mu"

Brain: "Mu" ? Mu as in "Nothingness" ?

???: Thats correct

Brain: OOOOHHHH, arent you guys are a bunch of villains defeated by the Kamen Rider, (*smirk*) you all are nothing but a bunch of groups of bargain sale!!!!!

Then Brain get electrocuted due to his smug words.

Oogumo Great Leader:

Talk nonsense again and this operating table will electrocute you with 500,000 volts.

Leader of Mu: We are seeking the warrior with 600 IQ, you should be thankful!

Brain: (*laugh*) NYOHOHOHOHOHO it looks like you didnt pick the wrong person, but forgive i am a Roidmude who care for his kin, and i dont even remember joining Mu.

Leader of Mu: Once we erase your memory you will become the strongest ally to us!

Brain: Um that would be no, please ?

Brain: No ? No please ? Please ?

Oogumo Great Leader: We do not need your compassion

Leader of Mu: DO IT

Brain: HEY HEY HEY STOP IT!! THE HEISEI ERA IS ABOUT TO FINISHED THIS ISNT SHOWA ERA ANYMORE!!! AAAAAAAAAAHHHHH AHHHHHHH AAAAAAAHHHHHHHHH!

The light inside the lab began to blackout, as the alarm are ringing and the monsters are finding the source of the problem, a scientist began to approach.

Brain: UWAAGH!!! Who are you!?

Crystal Peppler: Do not fred i am the scientist who awaken you. Good evening my name is Prof. Crystal Peppler

Brain: THAT FACE GIVES ME THE CASE OF DEJA VUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUU!!!!!!

================================
Meanwhile both of them are at the rooftop.

Crystal: listen to me Brain, they are different than any evil organizations. At this rate the world will face ruins!!!!

Brain: OH COME ON!!!! How am i suppose to fight after ive been revived !? Even Medic isnt here!!!

Brain began to feel something is missing.

Brain: Huh ? wheres my hankerchief ? (*rubbing through his pocket*) AHA FOUND YOU!!!

Only for the black belt drop from his pocket and Brain began to pick it up.

Brain: Wait THIS IS!?

But then the army of Mu confront Brain and Crystal, the 600 IQ Roidmude began to morph and engage into the battle, unfortunately he was defeated and thrown from the building leaving Crystal at the rooftop, he was about to be killed until Brain shout his voice "WAIT!!!", and land on the rooftop.

Start Your Engine! Brain, The Kamen Rider!

Brain began to defeat every monsters with ease and break Gremlin's neck.

(A/N: Poor Gremlin)

Brain: Professor, we have to go!!!!

Both Brain and Crystal jump and land to Brain's motorcycle.

And they escape, leaving the Oogumo Great Leader.

Oogumo Great Leader: Kamen Rider......Brain!?