MG Build Gundam MK-II

BUILD GUNDAM MK-II: MECHANICAL DATA
Name: Build Gundam Mk-II - Build Fighter Sei Iori Custom Made Mobile Suit

Model Number: RX-178B
Height: 18.5 meters
Weight: 78.6 tons

Created to be used in case the Build Strike needed repairs, this is the Sei-Reiji team's second machine. It was first used after the Build Strike was damaged in a battle with Tatsuya Yuuki.

While the Build Strike was designed to triumph in Gunpla Battle, this machine's design concept is a little different: it was created in order to "bring an original design to the Gundam world". This doesn't mean that it's unsuited for Gunpla Battle, however. Sei put all of his skill into its construction so that Reiji would have a strong compatibility with it. As such, it has a high performance in Gunpla Battle.

Just as you'd expect from a Gundam anime fan like Sei, when he was building this Gunpla he put a lot of thought into making an original setting for it. This machine is the "Imaginary Gundam Mk-II Unit 5", a test unit created by the Titans that's existence was unknown until now. All of its sensors have been strengthened, and the frame makes use of brand new materials and cutting edge technology. But its biggest feature is its personal Booster it can separate from or combine with. To achieve this, the Titans referenced and improved upon the Gaplant, a transformable mobile suit. You could think of this as the Titans' version of the G-Defenser, though upon combination this unit actually exceeded the Super Gundam's performance.

In combat, thanks to its enhanced sensors this unit excels at long-ranged combat. Furthermore, the Booster's cockpit block can separate and act independently, widening the possible tactical uses of the machine. While this is just Sei's fictional setting, it's just as true in real Gunpla Battle. If the enemy is attacking from a distance, the Booster can separate and be controlled remotely.

Additionally, the knowledge Sei gained from building this machine was used in his next creation, the Star Build Strike. Specifically, the base Gundam Mk-II possesses an inner frame similar to a human skeleton called a Movable Frame. This structure was ported to the Build Strike, and played a part in the development of Sei's unique RG System. When the Star Build Strike activates the RG System, a skeleton structure can momentarily be seen inside it. As you might have pieced together, that inner frame is identical to the Movable Frame inside this machine. While the Build Mk-II does not possess a RG System, it would probably be relatively easy to install one. Unfortunately, other things needed to be built during the preparations for the World Tournament so this addition never happened.

Name: Build Booster Mk-II - Build Gundam Mk-II Support Unit

The original Gundam Mk-II had a support unit called the G-Defenser it could combine with to form the Super Gundam. Working on the principle that "the Gundam Mk-II could combine with a support unit to rapidly improve its abilities", Sei created an original support unit with a completely different shape from the G-Defenser. This machine is based off of the Gaplant, a transforming mobile suit from the same TV anime as the Gundam Mk-II, "Mobile Suit Z Gundam".

The Gaplant was equipped with movable parts called Movable Shield Binders. These could simultaneously act as shields and attack with their built-in beam cannons. As they could freely move around, they had a wide range of attack. Sei came up with the idea of linking this range of motion to the arms. This gives this machine a much broader range of attack than what the Build Strike could do with its Large Beam Cannon.

The cockpit block can detach from the Build Gundam Mk-II and transform into an independent unit. This is an important system to have in Gunpla Battle, as the rules state that if the main machine is destroyed the surviving Booster can delay the end of the match and continue the fight.

Even if the machine is reduced to only its Booster, it still possesses sufficient fighting strength thanks to its powerful beam cannons. Sei's repeated use of this separation system clearly displays his attitude of striving for victory until the very end.

BUILD GUNDAM MK-II: ARMAMENTS

Beam Rifle Mk-II (Direct Connection to Generator type)
The Beam Rifle Mk-II can connect to the Movable Shields on the sides of the Booster. Doing so directly links them to a much larger power source, which greatly increases their power. Normally, having such a high output would require a weapon to be linked to a large generator, restricting its movement. But thanks to this machine's Movable Shields, the Beam Rifle Mk-II maintains a free range of movement, granting it a frighteningly wide range of attack.
This is the Build Gundam Mk-II's main weapon, as it makes the best use of its main feature.

Beam Rifle Mk-II
A rifle that can fire shots of energy. It's standard equipment for most Gundams. They usually have a high rate of energy consumption, limiting how much they can be used.
This beam rifle has a very powerful sensor, making it a weapon more suited for long-ranged attacks. It's usually connected to the Movable Shields and is rarely used by itself.

Beam Saber
Two cylindrical weapons that stick out from the top of the backpack. They're identical to the Gundam Mk-II's beam sabers. While not very large, they can form energy blades and be used as handheld swords. They receive a large amount of power from the Booster, so they're very strong.
This machine may be specialized for long-ranged combat, but as Reiji is a fan of close ranged combat they're the one weapon he can not do without.

Movable Shield
The Movable Shield, as the name implies, can freely move around. It's capable of a much wider range of defense than standard hand-held shields.
As a shield, it naturally can be used to block enemy attacks, but thanks to the Beam Rifle Mk-IIs installed inside excess defending should be avoided.

Build Gundam Mk-II's Other Armaments
The Bazooka, Shield, Beam Sabers, Beam Rifle, and the Vulcan Pod that can be installed on the head are just some of the equipment that this machine can use.
The Vulcans can be used to shoot down missiles or destroy enemy sensors. It's a weapon that's not very strong, but has a wide range of uses.