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Rinka are small red or green rings of energy which thrive only in Tourian and can move through any surface, much like the Wave Beam. They are endlessly regenerated as they try to prevent Samus from reaching Mother Brain, showing them as a security system for the supercomputer. They are seen launching out of circular generators found on ceilings, floors and walls, though there have been times where they spontaneously phase out of surfaces without the use of said generators or even out of thin air. The green Rinkas are noticeably launched faster than the red variant. If the Rinka are destroyed in Metroid: Zero Mission, they will provide Energy Capsules and Missile Ammo. In the original game and Super Metroid, they do not, making the Rinka highly undesirable nuisances. After Mother Brain's destruction, Rinka are no longer generated throughout Tourian in Zero Mission and during the base's self-destruct sequence in Super Metroid.

Bioweapon Research Centre Rinkas HD

Rinka deployed in corridors leading to Room MW in Metroid: Other M.

In Metroid: Other M, Rinka rings make an appearance in several passageways before Room MW, slowly homing in towards Samus as soon as they are shot from turrets resembling Ring Beam Units. They can be shot and destroyed. They make popping sounds each time they are spawned, and deal severe damage to Samus. These Rinkas, unlike their other appearances in other games, bounce off of any surface they come into contact with and can no longer pass through solid objects (for reasons unknown). However, this loss has made them into a greater threat; as they continuously spring away from a surface, they will always remain within the room (if not destroyed) and will persistently target Samus, which overall increases their chances of colliding with her. Their appearance foreshadows the approaching encounter with MB. Though never confirmed, it is likely that they were also present in Sector Zero, a replication of the Tourian base.

An attack similar to the Rinkas appeared in Metroid Prime 3: Corruption, where Aurora Unit 313 had energy cannons surrounding it, which shot red spheres that tracked Samus.

Official dataEdit


Japanese Metroid guide

Metroid manualEdit

"These fireball creatures suddenly appear in the last scene. Lots of them appear but they are not very strong."

1986 mangaEdit

"These fireballs suddenly erupt from the base's walls. They can be destroyed with the Screw Attack and Ice Beam."

Official Nintendo Player's GuideEdit

"These are fire rings which appear unexpectedly. A maximum of three appear where Samus is located."

Super Metroid Nintendo Player's GuideEdit

"Freeze them so no more will come out to get you."



  • WarioWare, Inc.: Mega Microgame$! and WarioWare, Inc.: Mega Party Game$! has a microgame named Metroid that re-enacts the fight between Samus and Mother Brain in the first game. Rinka are found on the second and third levels. If they hit Samus, they will only make her shake.


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