The Hyakki Gokou is a hyper-stylized 3D anime weapon, resembling a traditional Japanese demon mask with exaggerated features. It features a symmetrical design with sharp, angular edges and intricate engravings depicting mythical creatures. The mask is primarily colored in vibrant reds and blacks, with glowing yellow eyes that emit a faint luminous aura, giving it a menacing and supernatural appearance. The surface is polished to a high gloss, with subtle weathering around the edges to suggest ancient origins and battle use.