It was powered by Unreal Engine 3 , featuring high-end 3D graphics for its time.
The game featured an "all-star" lineup of Japanese game composers, including: Yoko Shimomura ( Kingdom Hearts ) Keiichi Okabe ( NieR ) Kenji Ito ( SaGa series) Hiroki Kikuta ( Secret of Mana ) Gameplay Mechanics Demons' Score 7z
Players controlled Serenity , a college student searching for her missing father. She uses the "Demons' Score" program to allow various demons to possess her, granting her new powers and skimpy, music-themed outfits to battle hell's minions. It was powered by Unreal Engine 3 ,
Defeating bosses allowed Serenity to gain their abilities and costumes, which changed her combat style. The ".7z" Context granting her new powers and skimpy
The gameplay was often compared to iNiS's previous hit, Elite Beat Agents .