Warp pipe

Warp pipes are pipes, usually green, that can be found throughout the Mushroom Kingdom in the Mario series of video games. Their existence is linked to the fact that Mario and Luigi are plumbers, though it is unknown whether the warp pipes' existence or the Marios' occupation was first.

Warp Pipe, a video game software developer, took their name from this item.

Appearances
Warp pipes first appeared in Mario Bros. on the sides of the screen, allowing Mario to go to the edge of the screen and come out the other side. Warp pipes also appeared at the top of the screen and emitted enemies and coins. Unlike other Mario items such as Mushrooms and Fire Flowers, the Warp Pipe is a stationary item and almost always cannot be used or picked up by a player.

Warp pipes next appeared in Super Mario Bros. dispersed throughout levels. Certain warp pipes allowed Mario to enter for either bonus "coin rooms," underwater sections, or shorcuts (in warp zones). They were replaced in Super Mario Bros. 2 with vases with the same function (to transport the player from one area to another.) The original Warp pipe design reappeared in Super Mario Bros. 3 and Super Mario World as they were in Super Mario Bros. Super Mario World introduced the different colored (non-green) warp pipes. It is also a furniture decoration of the Mario series in Animal Crossing.

Warp pipes appeared in Super Mario World 2: Yoshi's Island, Super Mario 64, the Mario Party series, and Super Mario RPG instead of typical RPG stairwells. Warp pipes also appeared in Mario Kart: Double Dash!! as giant pipes that players could drive through.