Phantasy Star: Fringes of Algo

In the sub-mission Mothers Memories, (Or something like that) there is a cut scene part way through that talks about what Mother Trinity was about. Later in the scene the name Coral comes up. If anyone remembers PSO, Coral was Pioneer 2's home planet.

A History Lesson
Prelude
In the year 3063, a meteor plummeted to the surface of the planet Coral. The scientific team dispatched to explore the crater found that the meteor contained a valuable energy dubbed 'Photon'.

Years later, an unmanned craft stumbled upon the planet that spawned the meteor. The government named the planet Ragol and quickly sent the colony ship Pioneer 1 to terraform the surface. The goal of this Pioneer Project was to secure productive land and further the progress of Photon research and technology.

The Pioneer 1 landed on Ragol in 3077. The colonists immediately began full-scale operations, beginning with the construction of a central dome that would act as their base of operations. While the colonists were busy trying to make a new life for themselves, another party was secretly excavating the site of an ancient civilization. As the excavation progressed, a powerful form of photon energy was detected deep within the ruins. Engineers decided that obtaining this energy would greatly help Photon research, and it was soon marked as a priority of the government.

Episode I
With the success of the Pioneer Project, a second ship, Pioneer 2, was sent into Ragol's orbit in 3083. As Pioneer 2 was opening a communication link with the Central Dome, an enormous explosion shook the planet's surface. The shock waves collapsed the Central Dome, effectively stranding the Pioneer 2 in orbit.

The chief officer of Pioneer 2, Principal Tyrell, ordered a private organization (Hunters) to explore Ragol's surface. Those that made contact with the colonists vanished -- the only explanation was an attack by the planet's native creatures.

All was thought to be lost until a young hero/scientist/daughter of Principal Tyrell, Red Ring Rico, began her own investigation of Ragol. As she searched the planet's surface, she left capsules behind her that would lead fellow Hunters to the secret behind the explosion. As she delved deeper into the ruins, she discovered a powerful being known as Dark Falz. It absorbed Rico's body into its own, gaining near infinite strength. The team of Hunters trailing Rico stumbled upon this abomination and met it in battle. Eventually, they emerged victorious.

Episode II
Even though Dark Falz was defeated, all was not well on Pioneer 2. In 3084, the ship was thrown into turmoil because the mysterious creatures of Ragol appeared to come back to life -- which fueled concern about the remains of Dark Falz. The Hunters sent to investigate failed to return. The government was quickly loosing control.

As the situation worsened, Pioneer 2's lab (which was in charge of overseeing Photon Technology) began an investigation of its own on the order of Chief Natasha Milarose. In the midst of an investigative probe, the team intercepted a message from an officer from Pioneer 1, Heathcliff Flowen.

The communications origin was the lone island Gal Da Val, which was located in the sea adjacent to the Central Dome. According to the government on Coral, Flowen, who was the vice commander of Pioneer 1's military, had died during the construction of the Central Dome. Hunters were immediately dispatched to investigate the island.

On Gal Da Val, the Hunters discovered a large experimental facility that was partaking in unethical research and development of Photon Technology. Scientists were creating their own breed of animals, which eventually turned against their creators.

A handful of Hunters bravely fought off these creatures, and unearthed more messages from Flowen. As they delved underground, they discovered that Flowen had been wounded in the battle with Dark Falz and was taken by force to Gal Da Val with other life forms. Once there, he was absorbed by a bio-weapon known as Olga Flow. Olga Flow was able to take on the appearance of Heathcliff Flowen, but the Hunters saw through his ruse and were able to destroy him.

Episode III
In 3090, Principal Tyrell was supplanted by Dol Grisen because Tyrell had been unable to explain the destruction of Pioneer 1. Under Grisen's dictatorial rule, Pioneer 2 declared its independence from Coral. Grisen, in his lust for more power, allocated the majority of the ship's resources to the military -- primarily towards the development of cloning Technology.

As Pioneer 2's scientists researched cloning in accordance with Grisen's mandate, they discovered an energy source that rivaled Photon in power. This technology, dubbed C.A.R.D. Technology, is able to seal the world's phenomena into cards. These cards can hold anything from animals and weapons to skills and techniques, which can be instantly materialized at the whim of the user. To increase the development of C.A.R.D. Technology, Pioneer 2 began the colonization of Ragol.

A group of Hunters on Pioneer 2 are allowed to use this experimental C.A.R.D. Technology to help carry out the requests of scientists, who are directly under Grisen's command. Most requests are to counter the acts of a rebel group known as Arkz. The Arkz have learned how to replicate C.A.R.D. Tech and have managed to apply it to the creatures of Ragol. With their new found power, the Arkz fight against the development of Ragol by Pioneer 2's government.

Rick wrote:The Following is taken from the dialogue of Phantasy Star Zero and put in order:

~On Coral, Newmans are improved and perfected with the work of Mother Trinity
~Mother Trinity takes care of Coral and the people of Coral continue to polute and fight and ignore her
~Mother Trinity gets angry and starts wiping out humanity on Coral
~Mother Trinity moves to Arca (Moon) and bombs mankind back to the stoneage
~Mankind on Coral goes into a period called "The Great Blank" and much knowledge is forgotten
~Mother Trinity resurrects the Newmans as her slaves and servants since they are superior to humans
~During the Great Blank, people forget the name of the planet and the moon
~A word referring to dirt gradually becomes a reference to the planet, itself - Earth. No one cares about giving the moon a name.
~Humans re-emerge on the surface of the planet, and begin rebuilding.
~Humans find Casts, and begin re-activating them. The Humans and casts then begin a fledgeling civilization.
~Phantasy Star Zero occurs.