Malaria is a thrash metal and crossover band from Merlo, Buenos Aires, operating in the tradition of aggressive street-level metal with lyrical themes spanning war, social commentary, and the mosh pit. The band has self-released multiple recordings on Bandcamp, including a three-track demo (2016), the eight-track "Future Decimation EP" (2017), and the two-track "Piss Tape" (2018).

Matahero is a crossover and thrashcore band from Santiago, Chile, formed in 2003. The band has built a steady discography over more than a decade, including their self-titled debut album in 2008, the EP Idealismo Inoperante in 2011, and the full-length Pensamiento Lateral in 2015 via Malaidea Discos.

Active since 1997 in São Paulo's periphery, Melody Monster play a grinding crossover style that fuses hardcore punk, thrash, and traces of grindcore into short, blunt songs concerned with politics, social conditions, and personal struggle. Their discography spans a self-titled debut (1998), "Mundo Perfeito" (2000), and "Desordem" (2004), with the band eventually landing on the Kaskadura label.

Metalepsia was a thrash/crossover band from Buenos Aires whose members included vocalist Facundo, guitarists Mariano Pampin and Tomás, drummer Yair Scarfia, and bassist Negra. The band released their nine-track album Síndrome de Demencia on February 18, 2015, blending aggressive thrash riffing with punk-inflected energy in the crossover tradition.

Metalepsia was a thrash/crossover band from Buenos Aires whose members included vocalist Facundo, guitarists Mariano Pampin and Tomás, drummer Yair Scarfia, and bassist Negra. The band released their nine-track album Síndrome de Demencia on February 18, 2015, blending aggressive thrash riffing with punk-inflected energy in the crossover tradition.

Originally formed as Metalmad in 2012 in Mogi Guaçú, the duo of Alexandre Quadros on vocals and Alex Roque on guitar and bass relaunched as MetalMad DC with a heavier, more aggressive identity. Their Portuguese-language output spans thrash, crossover, and hardcore-tinged territory, documented across singles including 'Olhos de Medusa', 'Chinelada', and 'Depois do Coma', the last of which earned a 7/10 review from Roadie Crew.

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.

Muerte Akción is a crossover thrash band from Santiago, Chile, formed in 2012 by guitarist/vocalist Rodrigo de las Riberas, bassist Sandino Muñoz, and drummer Rodrigo Herrera. Their politically charged lyrics tackle themes of colonialism, inequality, and Chilean social tensions, with releases spanning the 2012 EP through the albums Fuego (2014), II (2015), and Dominio (2022).

Mustaphorius play the kind of no-frills crossover thrash that worships at the altar of hardcore punk and late-1980s speed metal, with an irreverent streak that runs through their track titles and stagecraft. The band put out the EP "Bebidas e Mosh" in 2015 and returned in 2023 with their full-length "Homem Horrível", cementing their place in Curitiba's underground extreme scene.