Blast Shields are shields or locks placed over doors. They appear throughout the Metroid Prime Series. They are completely invulnerable to any weapons fire. They are commonly used to contain enemy or other threats and do not open until the threat is removed or when another task has been completed. Sometimes, a Door can become permanently shut with a Blast Shield, forcing Samus to find an alternate route. They are also known as Sealed Doors in Metroid Prime Hunters.
Other kinds of Blast Shield also appear in the Prime Trilogy. These types are made of more fragile material and so can be removed, unlike the normal Blast Shields. The Red Blast Shield is can be destroyed by Missiles. Green Blast Shields can be destroyed by Super Missiles, Power Bombs can destroy Yellow Blast Shields and Ice Missiles can remove White Blast Shields. Brown Blast Shields are found in Hunters, requiring only a Missile to unlock. Once the shield is removed, the door within is accessible.
Samus Aran's Gunship also has a Blast Shield in Metroid Prime 3: Corruption, which is activated from the inside: "Blast Shield switch will engage a protective layer of armor around the cockpit."In the same game, numerous doors in the Pirate Homeworld seem to be permanently locked and act similarly to a Blast Shield, blocking off access to areas that only Space Pirates seemingly have access to.
Logbook entry
Metroid Prime 3: Corruption: "Blast Shields are invulnerable to all types of weapon fire. Some are engaged when hostiles are detected and will only open once the threat has been eliminated. Others will sometimes remain shut and force you to find an alternative route."
Trivia
- When a door seals in the Metroid Prime Trilogy version of Echoes, the door turns white, as if it were a Light Beam Door.
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