Bothrash — Almas Poseídas Review
Bothrash is a Costa Rican speed thrash metal entity. On 19 July 2026, Bothrash released their sixth full-length album, Almas Poseídas, GrimmDistribution & Sanatorio Records.
Bothrash, Almas Poseídas Review: This review will evaluate every aspect of the album, from its intricate musical composition to its production.
The First Three Sins, The Summary
The First Sin, The Strings/Keys: Serrated blackened speed/thrash riffs, subterranean bass, and Spanish-guitar motifs forge a raw, feral attack. The Second Sin, The Vocals: Piercing Spanish vocals fuse thrash barks with feral black metal rasps. The Third Sin, The Percussions: Militant, rapid-fire drums drive the assault with relentless momentum.
The Fourth Sin, Overall Discussion
The Ritual Threshold
The moment the play button is pressed, the Intro greets the listener with an atmospheric ignition, functioning less as a standalone composition and more as a ritual threshold into the album’s blackened speed/thrash assault.
Bothrash unleashes a thirty-five-minute uncompromising attack, spread across seven hymns and driven by dark, speed-metal-rotted riffs and an infernal atmosphere — immersing the listener in a dark domain of witchcraft, demonic possession, ritualistic blasphemy, and classic horror tropes.
Forged in the Blackened Wilds
The devilmanship across Almas Poseídas is executed with complete precision. The overall composition — both instrumentally and conceptually — feels as though it was forged within a dark, chaotic, ritual-twisted forest, balancing the raw, unhinged velocity of early German and South American black metal and thrash metal with complete technical authority.
Serrated Underground Production
The production across Almas Poseídas retains a dry, serrated, and razor-sharp underground edge. By avoiding glossy modern studio sheen, the mix preserves the visceral grit of the speed-metal-rotted guitars, the earthy weight of the bass ballast, and the raw, unhinged fury of the Spanish vocal delivery — delivering an authentic, hell-forged sonic document.
Speed-Metal Blades & Spanish Ruptures
The guitars stand as the primary weapon across Almas Poseídas — delivering fast, serrated, blackened thrash riffing with a fierce, uncompromising underground edge. Bothrash deploys a dry, cutting guitar tone that emphasises speed, precise articulation, and raw, feral hostility.
While the core riffing foundation is firmly rooted in classic speed metal, the execution is constantly pushed into blackened territory through rapid tremolo picking, violent down-picked barrages, and sudden, jagged rhythmic stabs. Adding a distinct regional flavour, occasional Spanish-guitar motifs erupt as brief melodic ruptures within the chaos — providing a fleeting acoustic breath before the hellish speed metal assault resumes.
Beneath this guitar bed, the bass functions as dark, subterranean ballast, thickening the rhythm section without straying from the core riffing framework.
The Voice of the Possessed
The percussive barrage and vocal execution across Almas Poseídas reinforce the record’s feral speed and hellish narrative focus. The drums operate as a militant, fast, and punishing engine — driving the album’s black/thrash velocity with unyielding aggression. Built on rapid double-time beats, classic thrash skank rhythms, and intense, blast-leaning passages, the percussive attack maintains constant, terrifying momentum.
Sung entirely in Spanish, the vocals deliver a raw, desperate, and deeply abrasive impact. Balancing between a biting thrash bark and a feral black metal rasp, the frontman utilises a high-pitched, piercing delivery. The vocals sound less like a conventional metal vocalist and more like a manic, possessed entity frantically recounting tales of dark horror, witchcraft, and societal decay.
The Infernal Truimph
Overall, Almas Poseídas is a vicious, feral fruit of art. Bothrash has forged an uncompromising thirty-five-minute black/thrash monument, melding speed-metal-rotted riffs, Spanish-guitar ruptures, and possessed vocal storytelling into a dark, infernal triumph.
The Fifth Sin, The Memorabilia
For me, Almas Poseídas marks an exhilarating new discovery. While the record is pitch-black and extreme to its very core, its sheer quality makes me want to check out the band’s back catalogue.
One thing to note, at least for myself: this album hits every single nail into the coffin — it is musically dark, devastatingly heavy, relentless in speed, and thoroughly raw. Steeped in classic speed/thrash and feral black metal while remaining entirely unholy in its focus on witchcraft, horror, and demonic possession, Bothrash has brewed a flawless potion of extreme underground metal.
The Sixth Sin, The Artwork
The visual presentation stands as a perfect visual analogue to the album’s overarching themes of demonic possession, occult warfare, and predatory darkness — capturing the record’s infernal atmosphere before the first riff even strikes.
The Seventh Sin, Disrelish
There is absolutely nothing to disrelish within the darkness. If anything, the only disappointment lies in the scarcity of information surrounding Bothrash — an entity whose music certainly deserves to be discovered.
The Hymns
01. Intro
02. Almas Poseídas
03. Oscuro desafío
04. Atrapador de almas
05. Ejército de Satan
06. Bruja negra
07. Sin misericordia
08. Escape mortal
Bothrash
John Vega — Guitars, Vocals
Kenneth Pérez – Vocals
Leo Brenes Mora – Bass
Jon Pereira – Drums
