Fire bar

Fire bars are an obstacle made of a large chain of fire rotating around a base. They were originally intended as an obstacle for The Legend of Zelda before it was decided that they would debut in Super Mario Bros. Nevertheless, fire bars have since become common obstacles throughout both the Mario and The Legend of Zelda franchises.

The Legend of Zelda: A Link to the Past
Fire bars make their The Legend of Zelda series debut in The Legend of Zelda: A Link to the Past, where they appear in numerous dungeons starting with the Mountain Tower. They are quite large and often appear in rooms with narrow walkways over pits. They always have four fire balls for every chain, which look identical to the fire balls that make up Sparks and Firesnakes. Link can harmlessly go through their flames with the Hookshot, though opportunities to do so are uncommon. The Magic Cape and Cane of Byrna can also be used, at the cost of magic.

The Legend of Zelda: Ocarina of Time
In The Legend of Zelda: Ocarina of Time, fire bars appear in the Fire Temple. Instead of large fire balls, they are made of a continuous stream of fire from a rotating relief, which is similar to how they are depicted in Super Mario 64. Both franchises would return to the typical design in later games.

The Legend of Zelda: Four Swords Adventures
In The Legend of Zelda: Four Swords Adventures, fire bars debut in the Tower of Flames. They appear in varying lengths, and sometimes can be reversed by pressing a switch. They can be jumped over with Roc's Feather.

The Legend of Zelda: The Minish Cap
In The Legend of Zelda: The Minish Cap, fire bars appear in caves as well as Dark Hyrule Castle, where they often have a bar on either side of the base. Roc's Cape can be used to go over them.

The Legend of Zelda: Phantom Hourglass
In The Legend of Zelda: Phantom Hourglass, fire bars appear in the Temple of Fire, where they are red, and the Ghost Ship, where they are blue. They no longer have a solid center, simply spinning around a fire ball. The fire balls themselves are smaller than previously, though to compensate, the bars have more units of fire in general. The exact length varies, and up to three bars can rotate around the same fire ball.

The Legend of Zelda: Spirit Tracks
In The Legend of Zelda: Spirit Tracks, fire bars are again Fire Temple obstacles. They are red and resemble their appearance in Phantom Hourglass, though a peg has been placed over the middle flame to look as though they are circling it.

The Legend of Zelda: A Link Between Worlds
In The Legend of Zelda: A Link Between Worlds, fire bars are less common than in A Link to the Past, appearing only in Skull Woods, Turtle Rock, and Lorule Castle. They now have a rotating fire cannon as a base, but still simply rotate around as individual fire balls. They can be temporarily frozen with the Ice Rod.

The Legend of Zelda: Tri Force Heroes
In The Legend of Zelda: Tri Force Heroes, fire bars look like they do in A Link Between Worlds and first appear in the Den of Flames. They can be doused with the Water Rod, which is necessary in some cases due to some not moving.

BS Zelda no Densetsu: Inishie no Sekiban
In BS Zelda no Densetsu: Inishie no Sekiban, fire bars first appear in the fourth dungeon, in the Lost Woods. They look and act the same as they do in A Link to the Past.