Pirate Homeworld

The Pirate Homeworld is the home-world of the Space Pirates. According to the Metroid Prime Trilogy story guide, the planet visited in the third game is but one of many Space Pirate homeworlds, indicating that they have claimed many planets as their birth place, despite not originating from them. Samus Aran visits the planet in Metroid Prime 3: Corruption. Though the planet is effectively unnamed in the American version of Corruption, the Japanese version suggests the planet is named Urtraghus.

Complete Map of the Pirate Homeworld : 

Features
The Pirate Homeworld is plagued by a steady stream of Acid Rain, harming any creature without proper protection. The planet was also hit by a Leviathan. What makes this case remarkable is that the Phazon corruption spread extraordinarily fast, possibly from the Space Pirates' interactions with the Seed, creating many Phazon growths on the planet. The Homeworld was also protected by a gigantic shield, which Samus had to deactivate in order for the Federation's assault to commence. When the Leviathan was destroyed, the planet's corruption was stopped.

Areas
The planet includes the Command Center, a Research Facility, a Mining Site and the Pirate Homeworld Leviathan. In the Command Courtyard, there are three doors in one room that cannot be opened. It is likely that these doors lead to the Pirate's living quarters, or High Command. Various large tunnels are present too, probably allowing Pirate Cargo Drones access to the rest of the base. Samus was able to navigate these tunnels using her Gunship, allowing her to move between the sections of the facility quickly and undetected.

Noteable Rooms
Command Research Mines
 * Landing Site Bravo
 * Command Courtyard
 * Command Station
 * Transit Station Leviathan
 * Landing Site Alpha
 * Scrapvault
 * Metroid Processing
 * Proving Grounds
 * Landing Site Charlie
 * Phazon Quarry
 * Phazon Harvesting
 * Main Cavern

Inhabitants
While the planet's most abundant life-forms are Space Pirates, Phazon Metroids and a few other bioforms dwell on the planet as well, such as Shriekbats and Scritters, who thrive in the sheltered areas throughout the Space Pirate complexes, despite the inhospitable weather conditions. Another species that may originate here are the Korakk Beasts. A possible plant that may have grown on the planet is the highly toxic Bajar Grove, since it and the pirates are stated as having alkaloid in their systems. A number of mechanical creatures also reside on the planet, like the Puffer Mines which have been cybernetically enhanced to survive the rough conditions.

A number of deceased wildlife can be found and scanned in various places where Pirate experiments have gone wrong, such as in the Scrapvault, where one such example has been woven into the Pirate structure.

The Bounty Hunter Gandrayda also makes an appearance here in a boss battle. The Leviathan on the planet is guarded by Omega Ridley, an enhanced and revived version of Meta Ridley corrupted by Phazon.

Bosses

 * Gandrayda
 * Metroid Hatcher
 * Pirate Commander
 * Omega Ridley

Major Upgrades

 * X-Ray Visor
 * Grapple Voltage
 * Hazard Suit
 * Nova Beam
 * Hyper Grapple

Trivia

 * The Pirate Homeworld is referred to as "Planet Urtraghus" (惑星ウルトラガス) in the Japanese version of the game , although this particular name is not found anywhere in the English versions. A possible reference to this name is the Urtragian Shriekbat that is found upon the planet.


 * There is a glitch in the room Mine Lift that will not let a player continue the game if the player saves after the glitch, forcing them to restart the game. There are two spinners in the room, which cause the lift in the room to drop. However, if one spinner is activated and the player leaves the room, both spinners will be deactivated when the player returns, and the mine lift cannot be dropped. If this happens and the player saves, the game cannot be continued.


 * There is a reference to a seemingly lost Metroid game in the Research Facility of Pirate Homeworld. In the room Metroid Processing, a terminal mentions that "Metroid project Dread is nearing completion." This likely refers to the Nintendo DS video game, Metroid Dread, that seemingly fell off the radar for development; however, the terminal next to it says the project has failed. According to developers at Retro Studios, the reference was not intentional, but this inside joke has caused much frustration and false hope amongst gamers, as Metroid Dread was thought to have been possibly canceled prior to the release of Metroid Prime 3.


 * In the Phendrana Drifts Pirate Lab in Metroid Prime, there is a similar unintentional reference to Metroid Prime Hunters, the scan mentions a Hunter Metroid with the assigned code 'ds'. This might have been completely coincidental because the developers of Prime may not have known about Hunters because Prime was released a year and a half before Hunters was publicly announced, a year before even the DS was announced. This may have been the inspiration for the Dread 'joke'.


 * The theme of the Space Pirate Homeworld is a remix of the music heard while exploring the underground sections of Crateria in Super Metroid. The song was again heard while in Chozodia during Metroid Zero Mission when Samus is trying to regain her lost Power Suit.


 * This is the planet with the most Energy Cells in the game: Three in total.


 * The art booklet that is included with Metroid Prime Trilogy refers to the planet as "one of the Space Pirate homeworlds".