Smog

The Smog appears as a man with an opened torso and his head reared far back, with glowing, inflamed lungs and other glowing orange tumors sprouting on its body and especially its throat, as well as glowing orange eyes. It is a tall, spindly creature with an opposable ribcage, which opens vertically and can be used to attack. This monster is similar to the Lying Figure and Straight-Jacket but instead of spraying you with acid, it spews a noxious black gas. This gas continuously leaks from their mouths, and flecks of burning embers are also present in it.