The floor vents release grease when you open the central sarcophagus. The gargoyle heads shoot fire which ignites the grease. If you find the button you can open the sarcophagus and the game goes to turn based mode.
Click the button AFTER opening as that will stop the fire traps. I cover the floor vents so I can explore with ease because I don’t want to slip and fall but without fire, it’s just annoying.
Don’t forget to collect the soul coin.
