MZM Reo swarm

Samus using a zip line to avoid acid and Reos

A zip line[1] is a mode of rail system transportation present throughout Kraid's Lair in Metroid: Zero Mission.

Resembling ziplines, they are used to cross distances hindered either by acid or some other means. They only require a free hand to use, but Samus can also hang onto them in Morph Ball mode, which is particularly useful for getting across long distances. It is unknown how the mechanism can hold the Morph Ball, but it is possible that there is a magnetic connection similar to the Spider Ball and a Spider Ball Track.

Before she can use zip lines, Samus must activate their power station, the ancient Chozo machine by standing in its generator in Morph Ball mode, giving it a kinetic charge that reactivates the system. Samus can then shoot red switches on the ceiling to summon them if the zip line is on the other side of room.

One notable use of the mechanism is in the battle with Acid Worm, where Samus has to grab hold of it to zoom past the creature when it tries to ram into her.



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