Metroid Prime: Suits
The four main suit stages in the original game. The unlockable Fusion Suit appearance is a bonus costume, not a fifth progression upgrade.
Contains late-game location and upgrade spoilers.

Power Suit
Samus’s basic suit after the frigate escape. It does not protect her from extreme heat.

Varia Suit
Restores protection against heated environments, opening the way through Magmoor Caverns. Earned after Flaahgra.

Gravity Suit
Removes the movement restrictions of water and improves underwater visibility.

Phazon Suit
Gained after the Omega Pirate battle. Protects against blue Phazon; orange Phazon remains hazardous.
Metroid Prime artwork, icons and screenshots © Nintendo / Retro Studios. Images archived by Wikitroid.
Protection changes where exploration is practical
A suit upgrade can make a hazardous region manageable, but it does not automatically solve every obstacle in that region. Compare the room’s hazard with the equipment you now have, then inspect doors and routes for their separate requirements. After an upgrade, choose an earlier environmental obstacle to revisit. This turns equipment progress into a specific exploration task rather than an aimless tour of the whole map.
Keep suit and visor functions separate
Suits affect protection and environmental access, while visors change what Samus can perceive or interact with. A room that remains confusing after a suit upgrade may therefore require observation through a different visor rather than another combat tool. Test the available equipment deliberately and scan unfamiliar devices. The original GameCube descriptions here should be paired with that edition’s control layout when selecting and using those tools.
References
Covered edition: Original Nintendo GameCube game. Wii and Switch re-releases have different controls and bonus features.
