Formed in Taquara in 1993, Megalon built their sound around the savage intersection of death and thrash metal, channeling science fiction themes through a battery of demos — "Hands of God" (1998) and "Gattaca" (2000) — that drew coverage in national outlets like Rock Brigade magazine. The band was also a driving organizational force behind the local Thrash Attack festival and is documented in the regional rock history documentary "As Pedras do Rio Ligeiro."

Mental Disorder is a death metal and grindcore band from Temuco, in Chile's Araucanía region, built around original members Jorge Kayser (vocals/guitar), René López (guitar), and Jorge Ortiz (drums), with Mig Martiz on bass. The band originally formed in 2009 and disbanded in 2013 before regrouping in 2018; their themes address mental illness, society, and violence.

Mental Distortion is a Buenos Aires death metal band that began performing as No Class at the iconic Cemento venue before adopting their current name. They released their debut album "Mentally Distorted" in 1997 on Sopa Fria Discos, and later added the EPs "Death Is Your Fate" and "Faces of Death" to their catalog.

Meridion is a four-piece death metal band from Santiago, Chile, founded in 2017, whose music blends dark and technical death metal with themes drawn from Andean aboriginal culture, occultism, and colonial history. The band released their debut full-length Rise from the South in 2018 and followed it with the eight-track Caverns (2024) through Mexican underground label Iron, Blood and Death Corporation.

Meridion is a four-piece death metal band from Santiago, Chile, founded in 2017, whose music blends dark and technical death metal with themes drawn from Andean aboriginal culture, occultism, and colonial history. The band released their debut full-length Rise from the South in 2018 and followed it with the eight-track Caverns (2024) through Mexican underground label Iron, Blood and Death Corporation.

Founded by Angelo Torquetto following his departure from Desertor, Messianic Cry fuse death metal brutality with hardcore vocal intensity and a Christian lyrical perspective. Their 2012 debut 'Freedom for Those Who Weep' — released through Silent Music Records — delivers ten tracks that draw equally from thrash, death metal, and hardcore while addressing themes of human struggle and faith.

Metastasis is a death/thrash metal band from Quilpué, Valparaíso, Chile, formed in 2006 by Gabriel Quinteros and Eduardo Madariaga, whose name was suggested by a friend who had battled cancer as a reflection of the band's death-themed subject matter. Their discography spans the 2011 compilation From the Snow the Executioner Rises Again (Suffering Jesus Production), the 2014 full-length The Essence That Precedes Death, and the 2024 album Fatal Morphosis, recorded at Vardager Records in Quilpué.

Metáfora were a thrash/death metal band from Sergipe whose releases included the album 'Paganini' and the later full-length 'Vincit Omnia,' both catalogued on Metal Archives. The band split up after cultivating an aggressive sound rooted in the Brazilian extreme metal tradition before dissolving.

A chaotic extreme metal project from São Sepé blending grindcore, death metal, and goregrind into what the band describes as a schizophrenic fuss of extreme subgenres. Their discography includes a split with Despoiled at Birth and a collaboration with S.E.B.O.