Burning Tears was a gothic metal band from Santiago, Chile, whose sound drew from doom, black metal, and classical influences with flute as a featured instrument. The band released the album "Tales from a Disturbed Soul" in 2009, recorded and mixed by Franco Maestri at FM Estudio in Santiago, with tracks like "Snow Tears" and "Bride of Death" generating attention in the Chilean gothic metal scene.

Burning Torment is a death/black metal band from Fortaleza, Ceará, Brazil, active since 2014. The band has released two full-length albums — "Darkness Reborn" and "In the Eyes of the Impotent God" (2017) — along with a single, operating as an independent act with themes of death, destruction, anti-Christianity, and chaos.

Burst into Fire is a heavy metal band from Jacareí, São Paulo, Brazil, formed in 2019. The band debuted with the EP "Heart of Ashes" in late 2019 and released their first full-length album "Chimera" on October 29, 2021, a ten-track record that established them as part of the newer generation of Brazilian heavy metal acts.

Burying Existence is a blackened death metal band from Manaus, Amazonas, Brazil, formed in 2023. The band operates out of one of Brazil's most geographically isolated major cities in the Amazon region and has released tracks including "Stigma," "The Sick of the Ages," and "Illusion" via their Bandcamp page.

Bushido is a traditional heavy metal band from Belén de Escobar in Buenos Aires province, Argentina, featuring vocalist Boris Bargas, guitarists Ian Undery and Andrés Mata Suárez, bassist Federico Fahsbender, and drummer Ezequiel Castro. The band released their self-titled Bushido EP in 2018, a three-track recording produced at FDM Studios, showcasing their commitment to classic heavy metal style.

Butequeiros is a crossover thrash band from Nova Odessa, São Paulo, Brazil, formed in 2018. The band blends thrash metal, hardcore, and punk into a noisy, aggressive sound aimed at protesting fanaticism and social conformity. Their 2018 debut album "Santa Esquizofrenia" showcases their raw, energetic approach to the genre.

Bvrial ov Cristvs is a black metal band from Belém, Pará, Brazil, formed in 2020. The band's music draws on themes of Quimbanda, occultism, and nature, situating their sound within the tradition of Brazilian underground black metal. The project was later renamed Duldra in 2023, continuing under a new identity.

Bwitch is a psychedelic doom project from Rafaela, Argentina, conceived and executed entirely by Francisco Calvinho. Their 2021 debut release Rituals pairs slow, fuzz-heavy riffing with atmospheric psychedelic vocals, drawing comparisons to the occult rock and doom underground. The project blends classic doom heaviness with an otherworldly, hazy texture that sets it apart from the harder-edged metal acts in the region.

Bywar is a Brazilian thrash metal band from São Caetano do Sul in the greater São Paulo area, active across a span of approximately 17 years before disbanding in 2013. The band recorded four full-length albums, including "Twelve Devil's Graveyards" (2007) and "Abduction" (2011, released through Mutilation Records), establishing themselves as a fixture of the Brazilian old-school thrash scene. Their lyrical themes ranged from war and occultism to ufology and paranormal phenomena.