Yellow Biri are recurring enemies in The Legend of Zelda series.
A Link Between Worlds
Cadence of Hyrule
Yellow Biri are a variety of Biri that can be found in dungeons and move to the beat of the music. On every beat, they move diagonally in the shape of a diamond unless blocked by an object, in which they will then continue to move between their given set of tiles or stay in one place. They can electrify their bodies for a total of four beats, stunning and damaging Cadence, Link, Yves, or Zelda when they make contact with them, and lose their electricity for another four beats before repeating the pattern.