A São Paulo heavy metal band whose Portuguese-language lyrics confront class struggle, systemic oppression, and social decay with blunt force. Their 2018 physical release ABISMØPORTAL, put out through Shinigami Records, combined the Abismo EP with the subsequently recorded O Portal EP, documenting two distinct phases of the band's evolution.

Minoría Activa is a crossover thrash and hardcore band from Buenos Aires that emerged in 1991 as part of the influential Buenos Aires Hardcore (BxAxHxC) independent movement, with vocalist Esteban "Moncho" Seijo anchoring the band throughout its run. Their discography spans albums including Principio del Fin (2000), Donde Nadie Pertenece (2010), and Híper Mega Mosh (2019), the last recorded at Estudio Monsterland with numerous guest contributors.

Misa Negra is a death metal band from Buenos Aires whose current lineup features Martin Madariaga and Mauro Mainero on guitars, Joaquin Vazquez on bass, Eduardo Turco on drums, and León Emiliano Pardo on vocals. They released their debut full-length Ceremonia in May 2018 and followed it with Umbral del Báratro in 2025, establishing themselves as one of the more active acts in the Buenos Aires death metal underground.

Misanthropic emerged from Espírito Santo's underground with a corrosive, lo-fi approach to black metal, channeling pure hostility through deliberately raw production and abrasive riffing. The project surfaced with the promotional demo Pain in 2005 and followed with the album Echoes of the Nightmare in 2007, cementing their place in the uncompromising Brazilian raw black metal scene.

Misanthropic Winter deals in cold, desolate black metal that mirrors the coastal isolation of its Rio Grande do Sul origins. The project's 2018 release Effigy of Frost introduced the band's bleak aesthetic, driven by Frosturnal's guitar and vocal work against a backdrop of wintry, misanthropic themes.

Misiva is a heavy metal band from Luján, Buenos Aires Province, featuring Damian Tus on vocals, Ezequiel Corsi on guitar, Pablo Golia on bass, and Lucio Ascani on drums. Their 2020 self-titled EP, recorded at Chivo Records Studios by producer Luis Salvatierra, contains three original tracks and a cover of V8's classic "Lanzados al Mundo," situating the band squarely in the tradition of Argentine heavy metal.

Missas Negras operates in the Satanic and occult tradition of Brazilian black metal, building their sound around themes of sexual magic, anti-Christianity, and sadomasochistic ritual. Active since 2014 and entirely independent, the band represents the uncompromising underground black metal spirit of the Mato Grosso do Sul scene.

Mistetaret fuses raw black metal with expansive ambient passages, conjuring a sound that evokes vast nocturnal spaces and cosmic isolation. The project debuted in 2023 with the eleven-track album Mysteries of Stellar Nights Lost in the Infinite Void, establishing an ambitious aesthetic that blurs the line between harsh metallic fury and contemplative soundscapes.

Mistwrath is a Satanic black metal act from Rio Grande do Sul operating in the raw underground tradition. The band formed in 2017 and is aligned with the Impure Lust Cult label network that supports Brasil's uncompromising black metal underground.