As Elancia Chronicles dungeon themes go, this one is certainly one of the harder ones! This particular song plays in (some of) the fortresses occupied by the Order of New Gods that are encountered in Seasons 3 and 4. The first of these is in Season 3, Fort Victoria, just north of the Salt flats in northern Kerlynzia. This fortress is occupied by two of the weakest members. Fortresses or other establishments owned by more prolific members are likely to have a different theme, but we'll see when the final season (4) rolls around. :3

I took inspiration from Chrono Trigger (remember when you go back to the Dino fort long after it's sank into the ground?) the later Castlevania games, and Mega Man X. It was fun to work on something hard, heavy, and really, REALLY excruciatingly cheesy. Cutting loose like this is a blast.