Peristaltic Movement traffic in old-school death metal built around grotesque medical and pathological imagery, best showcased on their self-released debut Anomalies Museum (2017), recorded at Estúdio AM in Rio de Janeiro and mastered in Athens. Tracks like "Cranioscopy," "Colonizing the Orbital Cavity," and "Desintegration of Human Tissue" make the thematic territory plain — this is clinical, unadorned death metal with no concessions to polish.

Founded in Divinópolis in 2008, Perlokus is a raw black/death metal duo — VoidNecroLust and HEL Antichrist Revenge — who cite Sarcófago's INRI as the defining template for their sound: primitive, blasphemic, and chaotic. After years of demos and a brief name change to Ritos Abominaveis, they returned as Perlokus and released two full-lengths, Ainda Morto e Decomposto (2016) and Hóstia Podre (2019) via Brazilian Ritual Records, both cementing their place in the South American underground extreme metal tradition.

Permafrost was a black metal band from Buenos Aires active during the mid-2000s and again around 2007–2010. They appeared on the Southern Elite Circle Compilation (2007) alongside fellow Argentine acts, and released a split titled A Blindfold Stained With Blood / Haunting the Forgotten (2009) with Campo de Mayo before ultimately disbanding.

Perpetual Devourer is a death metal band from Quito, Ecuador, formed in January 2025 by guitarist and vocalist Adrián Salazar alongside drummer Diego Ocampo and bassist Víctor Ordoñez. The band released their debut album Spirits of Annihilation in late 2025 through Death Forces Records, a five-track record recorded at Winners Productions in Latacunga that delivers straightforward, aggressive death metal. Signing to a dedicated death metal label in their debut year signals the band's intent to establish a serious presence in the genre.

Perpetual Faith play technically sharp old-school thrash metal rooted in the German school — think early Kreator and Destruction filtered through a Bay Area sensibility — and weave explicitly Christian themes throughout their lyrics. The band started releasing material in 2008 with the demo "Visions from Tomorrow" before issuing their seven-track EP "Price of My Head" in December 2014.

Perpetual Force deal in straightforward heavy metal and hard rock with a classic-era sensibility, delivering riff-driven songs that lean on groove and melody over extremity. Their 2016 debut "Absolute Power" introduced their eight-track blueprint, with tracks exploring themes of religion, justice, and human fallibility.

Perpétuos Perversos is the solo project of Gabriel Mortiph, a one-man black metal outfit from Espírito Santo that channels melodic extremity through an anti-demiurgal, occult-philosophical lens. Mortiph has built out the project across the full-length "Cogito a Pestilência" (2021) and the follow-up "Escoltando o Bastardo ao Vale das Aberrações" (2024), both exploring dark metaphysical themes through densely layered compositions.

Persecuter play aggressive thrash metal with deep roots in the Teutonic school — Destruction, Kreator, Sodom, and Exumer are all audible touchstones — alongside doses of American thrash brutality from the Slayer and Exodus end of the spectrum. The band released "Perfect Life" in 2013 and the more developed "The Hatred Domains" in 2017, both driven by Pitter's dual role on guitar and vocals and lyrics that dissect anti-religious and human-nature themes.

Perseguidor is a speed and thrash metal band from Concepción, Chile, formed in November 2007 by guitarist Roberto Careaga and vocalist Cristian Cisternas with the aim of reviving classic South American speed metal with socially conscious Spanish-language lyrics. The band released their debut album El Castigo in 2011, followed by the EP La Solución (2015) and their most recent full-length Bajo el Asfalto (2024) on Evil Steel Records.