In a positive review for Exclaim!, Calum Slingerland wrote that Omega is very much the "yin to Alpha's yang," highlighted by "the jerky chugging of "The Bad Thing," the thrashy "Graveless" and the slow-burning "Hell Below," which comes complete with a tasteful jazz-fusion outro." Antihero Magazine called the Juggernaut albums as a whole Periphery's "magnum opus", specifically praising the vocals.