Psycho Walls is a three-piece from Tucuruí, Pará, formed by Adson Ricardo (drums and vocals), João Paulo Rodrigues (bass and vocals), and Renan Albuquerque (guitar and vocals). The band recorded their debut EP "Get Psyched!" at Albuquerque's home studio in February 2014, releasing it in March of that year with five tracks including "Jeff Groupies," "Big Saloon Of Souls," and "Golden Era."

Psychosane formed in Ribeirão Preto in 2013 as an Adrenaline Mob covers band, taking their name from a track on that band's debut album "Omertá," before evolving into original material. The current lineup features Marcelo Seabra on vocals, Heuler Schivo on guitar, Leonardo Balaban on bass, and Roberto Jean on drums; the band released their debut EP "Laws of Aggression" on September 30, 2019.

Questions is a hardcore band from São Paulo founded in February 2000 by vocalist Edu Andrade, guitarist Pablo Menna, bassist Marcelo Papa, and drummer Eduz Akira, with an approach rooted in old-school hardcore and metal aggression. They released their debut album Resista! in 2003, followed by Fight For What You Believe in 2007 via Liberation Music Company — the same year the band toured 17 European countries across 37 shows.

R.I.P. Soldier was a thrash metal band from Recife, Pernambuco, who recorded their sole album The True Soldiers Never Die between October 2009 and January 2010. The ten-track album — drawing influences from Bay Area thrash and Sepultura's Beneath the Remains era — was released in 2014 through GS Productions in a limited edition of 100 digipak CDs.

Raging War is a thrash metal band from Brusque and Florianópolis, Santa Catarina, formed in 2016 as the successor to Monster Truck, a group the members had run since 2005. Their self-titled debut album, recorded at Tobias Blues Studios in Brusque across 2016 and 2017, was released on June 6, 2018, and spans ten tracks including "Third World," "Enforced System," and "Bastard Dogs."

Raiken is a melodic death and thrash metal band from Brasília active since at least 2019, with a lineup of Ricardo Leite on bass and vocals, Cristiano Marques and Leonardo Pacheco on guitars, and Daniel Neves on drums. Their five-track EP Shattered Shield, released on March 20, 2026, moves across melodic death metal, thrash, and epic heavy metal and was independently produced by the band.

Rankatoko is a thrash metal and hardcore band from São Paulo formed in 2019, with a lineup of Marcelo Viera on vocals, Eduardo Xaxa on guitar, Alex Souza on bass, and Eduardo Jamaica on drums. Their debut release, the three-track EP Chacina e Posse, was recorded live at Greenhouse Studio in São Paulo and released on January 20, 2019.

Raptores is a thrash metal band from Ribeirão Preto, São Paulo, formed in 2010. They released their debut EP Forgotten Is Not Dead in September 2010 and followed it with the full-length Age of Fear in May 2012 on Genocidio Records, a ten-track album that incorporates thrash, death metal, and traditional heavy metal influences.

Ratos de Porão (Portuguese for "Basement Rats") formed in São Paulo in November 1981 and went on to release Crucificados pelo Sistema in 1984, the first hardcore punk LP issued by a Latin American band. Vocalist João Gordo joined for that debut and has remained the band's frontman ever since; their 1987 album Cada dia mais sujo e agressivo is widely credited as the first Brazilian crossover thrash record of note, and the band has since released more than fourteen studio albums while continuing to tour South America, North America, Europe, and Asia.