What makes Monster by Girugamesh notable?

Upon its release, 'Monster' debuted at number 9 on the Oricon Weekly Albums chart, marking a significant commercial achievement for the band. The album's innovative approach to genre blending received positive critical reception, helping to elevate Girugamesh's status in the global alternative metal scene. By 2013, Girugamesh had established themselves as a significant force in the Japanese rock scene, releasing 'Monster' as their fourth studio album. This release followed their 2011 album 'NOW,' showcasing a more refined sound, blending heavy metal with experimental elements while solidifying their unique identity amidst a competitive landscape.