So we have another crossover. It's Mega Man Star Force x Super Robot Wars. But I adjusted the crossover with Gundam Build Fighters because majority of the setting takes place in Build Fighters Try.

So without further ado, here's the prologue.

Chapter 0: The Banpla Era.

Banpla, short for Banpresto Plastic Models. Toys that were made based on several media involving the Gundam franchise, Mazinger, Getter Robo or other mecha series. Banpla were made to allow people, especially mecha otaku, to build their very own miniature mecha of their favorite franchise, either to reenact the story into real life, or customize them to their liking. It was so popular in Japan, that one particular laboratory, AMAKEN, decided to make Banpla do much, much more with EM Wave technology.

2 years later after the Meteor G incident, AMAKEN built the first experimental EM Wave machine that projects EM Waves to animate Banpla. The machine was composed of large, thick, hexagons combined together like a honeycomb.

"Prepare Test Subject RX-78-2.", one AMAKEN scientist instructed another to bring a Banpla. The test Banpla is in fact, a Gundam, from Mobile Suit Gundam. It was the Mobile Suit that started the whole Gundam franchise, so many fans particularly liked it, despite being the oldest Gundam in existence. "Activate the system, Tom.", one of the scientists, spoke to his assistant, Tom Dubious. "Yes, Aaron.", said Tom, Aaron Boreal's assistant.

[COMBAT MODE, STARTUP.]

EM Waves materialize around Kelvin and formed hard light walls. Two yellow orbs of light formed over a control panel in front of him.

[PLEASE SET YOUR HUNTER-VG.], the system spoke.

"You sure about this, Kelvin? This is the 20 time we tried this experiment and failed.", Aaron said to his partner, Kelvin Stelar, with utmost concern, since this was his idea, he also gets to be the first system user. "Of course I'm sure, Aaron. AMAKEN has made EM Waves do so many things, including Real Waves. I'm going to keep breaking the limits of what the waves can do.", Kelvin, the test pilot, replied confidently as he placed his Hunter-VG. The Hunter began displaying the name of the Pilot, Wizard (which he had none.), and Banpla.

Kelvin's Hunter

Pilot: Kelvin Stelar

Wizard: None

Banpla: Gundam

[BEGIN EM WAVE DISPERSAL.], the system did as it said. The waves materialised to form a setting.

[FIELD 1: SPACE.]

[PLEASE SET YOUR BANPLA.],

Kelvin placed the Gundam on the system in front of the GP Base. The Banpla is then scanned. "Hope this works.", Kelvin prayed. All the scientists watched closely for any sign of movements. 30 seconds later, the Banpla's head jerked up and it's yellow eyes lit up. "Alright, Phase 1 complete!", Kelvin said.

[BATTLE START.],

The EM Waves surrounded the Banpla and form a launching dock. Kelvin grabbed two orbs of light.

"Kelvin Stelar."

"Gundam."

"Launch!"

And so, the Banpla boosted out of the dock and into 'space'. "Now for Phase 2.", Kelvin moved the orbs a bit, the Gundam moved according to Kelvin's controls. He made it flew around the asteroids. Then he flew through a hole of a huge asteroid. Then he landed on a moon. "Phase 2 complete. Now for Phase 3.", said Kelvin.

"Prepare the targets.", Aaron instructed Tom, who summoned several targets. Some of them were stuck to some asteroids, while some of them floated aimlessly. "Let's see what this baby can do!", Kelvin twisted the right orb, revealing a selection panel showing weapons the Gundam currently has. He selected a 'Beam Rifle', causing the Gundam to fire it's rifle at several targets. He then shot some more targets with the Gundam's 'Head Vulcans'. The targets depixelated, while those stuck to some asteroids exploded along with them.

Then approached some dummy Banplas, called Mocks, controlled by AI. "What's next?", Kelvin opened the weapons panel and selected 'Beam Saber', causing the Gundam to pull out a white rod from it's backpack. The rod started projecting a pink energy blade from the tip of the rod It then proceeded to slice and dice a few Mocks effortlessly. "Oh yeah!", Kelvin yelled excitedly, but cut short when a 'Warning' word flashed on the screen. A Mock shot him in the back with a machine gun. Fortunately, he quickly reacted by raising his Gundam's Shield. "Shooting someone in the back, huh? That's just cheating.", Kelvin selected 'Hyper Hammer'. The Gundam swung it's mace, which boosted towards the Mock and smashed it's arm, before blasting the Mock to smithereens with a 'Hyper Bazooka'. The Gunpla landed on an asteroid. Silence followed after. "Phase 3 complete.", said Kelvin calmly.

[BATTLE ENDED.]

The EM Waves dissipated, the Gundam was frozen in its last pose. The system was covered in Mock parts scattered all over. "We…...did it. We actually did it!", Aaron yelled excitedly at the success. "I knew we would.", Kelvin sighed in relief. The scientists celebrated their success.

And so, the Banpla System began distributed to the public. Thanks to AMAKEN, people can finally enjoy playing with Banpla to the fullest. They can finally experience what it's like to pilot a mechanical wonder. It was met with so many positive feedbacks, that it even began distributed worldwide! Many were even used for Banpla Battle Tournaments.

It was the beginning of the 'Banpla Era'.