Armored Trains are overworld enemies encountered within Spirit Tracks.
Armored Trains can be found in a handful of locations. They are first found on the Ocean Floor within the Ocean Realm. They patrol the area in an attempt to prevent Link from entering the Ocean Temple. Soon after this occurs, Armored Trains appear within the Snow Realm, roaming the area alongside Dark Trains. As the story progresses, a plethora of Armored Trains can be found all across the Dark Realm. Link must defeat a total of six of them with the aid of Tears of Light in order to face the Demon Train.
Unlike Dark Trains, Armored Trains wear a thick, heavy metal-like mask that protects them from attacks. Instead of their engine producing a black flame, they produce a purple flame. Armored Trains are much more intelligent as opposed to their normal counterparts. They cannot be stunned, instead they move much slower, but stay in pursuit of the Spirit Train. Aside from that, they have the ability to change their direction at any given point.