Portland, Oregon's Menin have been sculpting stoner/doom metal since 2017 with the unhurried confidence of a band that understands what the genre demands: weight, patience, and a riff heavy enough to collapse under its own gravity. Portland's fertile underground has long welcomed the slow and heavy, and Menin fit naturally into that tradition — drawing from the psychedelic fog of stoner metal while anchoring everything in the bone-deep plod of doom. Their sound evokes the Pacific Northwest's overcast skies and towering forests, a particular kind of gloom that is neither aggressive nor resigned but simply immovable.

San Fernando Valley's Menk have been dragging death metal through a hardcore/punk filter since 2018, producing something rawer and more confrontational than the genre's polished technical end — a death metal/punk hybrid that owes as much to d-beat and early hardcore as it does to Morbid Angel. Los Angeles has a long underground tradition of genre-crossing brutality, and Menk embody that spirit by building a sound that is ugly, direct, and unapologetically aggressive. They are a Valley band in the best sense: scrappy, loud, and refusing to be smoothed down.

Lakeland, Florida's Menstrual Moonshine operate in the overlapping territory between brutal death metal and grindcore where songs are measured in seconds and volume is the primary compositional tool. Formed in 2020, they lean into the Sunshine State's longstanding tradition of extreme metal extremity, weaponizing short-duration brutality and blast beats with the kind of commitment that makes the genre's most outrageous acts genuinely compelling rather than merely provocative. Florida has produced some of the most unhinged death metal in the world, and Menstrual Moonshine approach that lineage with appropriately unhinged results.

Buffalo, New York's Mental Anguish have been grinding since 2018, bringing a relentless grindcore assault to a city with a deep and underappreciated metal history. Their approach to the genre is rooted in the classic tradition of pure physical aggression — short, blasting, and without mercy, the kind of grindcore that leaves no room for subtlety or patience. Buffalo's long winters and blue-collar grit seem to seep into the music, lending a certain grim purposefulness to the brutality.

Philadelphia's Mental Funeral carry one of the most storied names in the death/doom subgenre, and the band — newly active as of 2025 — approaches the weight of that legacy with appropriately glacial heaviness. Their death/doom metal fuses the crushing desolation of funeral doom's tempos with death metal's most sepulchral vocal textures and chord structures, building an atmosphere of profound, suffocating grief. Philadelphia has a long history of dark and extreme music, and Mental Funeral plant their flag in the genre's most lugubrious, mournful corner.

Boston's Mentalist occupy a peculiar and rewarding niche — black metal bent through experimental sensibilities that resist easy categorization, formed in 2019 in a city better known for hardcore and prog than for the corrosive. Their music uses black metal's core vocabulary of blast beats and tremolo-picked dissonance as a launching pad for stranger structural decisions, subverting the genre's orthodoxies from within. In a city with a strong tradition of intellectual extremity, Mentalist fit right in while standing apart from most of their contemporaries.

Buffalo, New York's Mephistoph have been weaponizing blackened death metal since 2013, fusing the two most extreme genres in metal into something that combines death metal's technical brutality with black metal's corrosive, dissonant atmosphere. Buffalo's underground metal scene operates largely beneath the radar of the coastal metropolises, and Mephistoph embody that hardened, unglamorous extremity — music made without expectation of mainstream acknowledgment, built purely for those who want the darkness at maximum intensity. Their catalog represents over a decade of committed sonic punishment.

San Luis Obispo's Mephitic Corpse have been running death metal through a grindcore blender since 2019, building a sound that is equal parts Old School death metal rot and grindcore's demand for maximum brevity and impact. SLO sits far enough from LA and the Bay Area to operate in its own insular extreme metal orbit, and Mephitic Corpse have cultivated a particularly fetid corner of that orbit — all grinding blast beats, down-tuned gore riffs, and vocals that sound like something pulled from a drainage ditch. They are a Central Coast anomaly and a genuinely punishing listen.

Formed in Brooklyn, New York in 1990, Merauder are a pioneering metalcore act that fused hardcore punk with heavy metal influences drawn from the Cro-Mags and Leeway. Their debut album Master Killer (1995) on Century Media Records became a cornerstone of the genre, followed by Five Deadly Venoms (1999) and Bluetality (2003). The band has remained intermittently active, releasing God Is I in 2009 via Regain Records.