Bagan

Bagan is a monster from the land of legend, located in Earth's ultra-ancient past.

Brought to the modern day by a group of alien invaders who were intending to conquer Earth, the creature was genetically altered by the aliens - who augmented it with the DNA of both the mutated dinosaur Godzilla and the alien dragon King Ghidorah.

Placed under their mind control, the ancient beast underwent a metamorphosis as its body reacted to the augmentation of Godzilla and King Ghidorah's DNA. This resulted in the creature violently emerging from its 'cocoon' as one of the strongest monsters on the planet. Bagan's true form before his genetic augmentation is never shown.

Origins
The aliens initially made their first attack against Earth in Osaka - using their mind controlled monster King Ghidorah to do their work for them. In retaliation to this, a group of humans managed to succeed with implanting a mind control box inside Godzilla's head - allowing them to control him before sending him off to fight King Ghidorah in Osaka. King Ghidorah proved to be a strong opponent, attacking Godzilla by firing gravity beams out of its three heads. However, the King of Terror was outmatched by the Monster King as Godzilla used his atomic breath to blast off King Ghidorah's middle head. Before Godzilla could finish King Ghidorah off, Ghidorah was beamed aboard an enormous flying saucer.

The aliens inside then addressed the group of humans controlling Godzilla by taking over their transmission - admitting that they had underestimated humanity and claiming that it was them who sent King Ghidorah to attack. They pointed out, however, that the human's plan would be useless as the aliens had other monsters under their control - who would defeat Godzilla and destroy Japan before the aliens would take over the planet. As they left and the group conversed on what to do, they agreed to use Godzilla to battle and destroy their enemies, no matter what. Professor Ogata (one of the group) took the central head of King Ghidorah for analysis - hoping to find use out of it.

While Godzilla was sent to battle the alien's next monster - MechaGodzilla - Professor Ogata managed to find out some interesting information regarding both Godzilla's and King Ghidorah's DNA. After Godzilla successfully defeated MechaGodzilla, Professor Ogata contacted the group to reveal his findings. However, the aliens had learned about his research and kidnapped him - taking the professor to a secure base at Lake Ashino, where they imprisoned him and set up 'fake' bases filled with explosives as well as setting up high voltage electrical towers around the various bases. Managing to seize his information on Godzilla's DNA, the alien's used his research to genetically create a new monster called Biollante (a part Godzilla, part rose hybrid) who they placed under their mind control and hid in Lake Ashino. Godzilla and the group eventually did locate the professor, with Godzilla battling Biollante shortly afterwards.

Following Biollante's defeat, Professor Ogata revealed his findings about King Ghidorah's DNA - they contained a lot of energy and could make Godzilla stronger, which was necessary as it would be almost certain that stronger monsters would appear. Injecting Godzilla with King Ghidorah's cells and after waiting for the nucleus to react, Godzilla did get stronger as his power increased - although the professor felt more can be learned from the space dragon's DNA. However, the group was unaware that the aliens now had the same knowledge and had began to put together a final plan just in case. As well as this, they reconstructed King Ghidorah as a more powerful cyborg called Mecha-King Ghidorah. In the meantime, however, they dispatched two Battra's (one larvae and one adult imago) to attack Yokohama. While Godzilla battled and defeated the two Battras, the aliens set their final plan into place.

Redirecting their final attack to Japan's capital city, Tokyo, the aliens unleashed Mecha-King Ghidorah to attack the city. Although the group is concerned about whether Godzilla can win, Professor Ogata explains that from his research into King Ghidorah's DNA, the possibility exists that they could transform Godzilla into a much more powerful 'Super Godzilla', with it been left to 'the player' (the one controlling Godzilla) to decide as to whether they wish to take on Mecha-King Ghidorah as Godzilla or as Super Godzilla, as long as damage in the city doesn't reach above 50%. One way or another, Godzilla eventually confronts his upgraded adversary in his normal or super form. Proving a much tougher opponent this time, Mecha-King Ghidorah is shown to be faster than before - with the middle head replaced with a robotic head that shoots a more powerful laser triple beam. Furthermore, Mecha-King Ghidorah has a brand new and devastating attack; been able to latch onto Godzilla with the 'Godzilla Grip' from its body and electrocute Godzilla with thousands of volts of electricity.

Appearance of Bagan
Depending on the player's decision, Godzilla eventually beats his mechanical opponent if fighting in his normal form, or easily beats Mecha-King Ghidorah if fighting in his Super Form. After defeating the cyborg, Mecha-King Ghidorah is shown teleporting away - with Godzilla changing back to normal if he fought in his Super form. However, the aliens have prepared for this after bringing back a monster called Bagan from Earth's ultra-ancient past and augmenting it with both Godzilla and King Ghidorah's DNA (following on the technique that Professor Ogata did previously). With Bagan under their control, the monster entered into a metamorphosis as its body adapted to the new DNA (becoming an enormous sphere of energy similar to a cocoon). Even in it's cocooned form, however, the aliens were ready to show just how dangerous the creature was.

Following Mecha-King Ghidorah's defeat, the aliens revealed the energy sphere. Speaking to the humans again, the aliens declared that the new monster is called Bagan and how humanity will learn 'the hard way' just how powerful Bagan is - with the energy body letting off several fireballs that, to the team's horror, annihilate Tokyo. Gloating that despite Godzilla's increased power, he is no match for Bagan - although humanity is perfectly willing to try and stop them. Bagan then heads for the Diet Building where the team's base is located - with the intention of destroying the team.

Realizing their only hope now is to fight Bagan with Super Godzilla, the humans set about a plan to get Godzilla the necessary energy to transform. If Godzilla fought Mecha-King Ghidorah as normal, he will be able to get all his energy at once from a 'Super Energy Bank' that a research team helping the group was constructing - allowing him to begin his battle against Bagan as Super Godzilla. However, if Godzilla fought Mecha-King Ghidorah as Super Godzilla, he will have to begin the fight against Bagan in his normal form until the Super X-2 can get enough energy to trigger his transformation. Furthermore, Miss Yana reveals that due to Godzilla fighting battle after battle, the control box is nearly destroyed - meaning 'the player' will have to defeat Bagan quickly.

Battle of the Legends
Confronting Bagan at the Diet Building, the energy sphere explodes - revealing Bagan in a brand new form, with the aliens gloating that they traveled back in time and brought Bagan back from 'The Land of Legend' (Earth's ultra-ancient past) before enhancing him by fusing both Godzilla's and King Ghidorah's cells to him - making him enormously powerful. All of Godzilla's attacks (including his powerful atomic breath) do barely any damage or even no damage at all - making it impossible for Godzilla in his normal form to defeat Bagan. As Super Godzilla, however, the odds even out with both monsters having the same amount of power.

Bagan easily proves himself as Godzilla's toughest opponent; unleashing several attacks including a slash attack and energy attacks - including his 'Diamond Storm' and Plasma Beam' attacks, both of which are devastating. Despite this, Super Godzilla throws all he can back at Bagan - with a range of new attacks including flinging a sphere of energy from his tail, throwing fiery punches, hitting his opponent with a more powerful body slam, blasting his opponent with his more powerful Super Breath attack and finally, unleashing his incredibly destructive Nova Beam.

After an epic and violent clash between the two legendary creatures, Bagan was eventually defeated - much to the alien leader's utter disbelief. As Bagan disappeared in a beam of light, Super Godzilla roared in triumph before he transformed back into Godzilla due to his power excess running out - the control box in his mind finally been destroyed in the process.With their invasion a failure, the aliens tried to flee, but were later shot down by the Super X-2, giving humanity the victory over the aliens.

Appearances
Super Godzilla - Video Game (SNES)