"We already descended to the sixth floor and we have yet to see anything strange other than us being trapped in this dungeon." Lyaeus, the Champion of Dionysus, stated as he has grown bored of defeating the monsters that are coming up towards them.
If the first floor featured ant monsters and the second floor featured boar monsters then the succeeding floors have also different monsters. The third floor of the Ruins of Etna featured monsters that are serpentine in shape but they have different features as if they evolved. Some had legs while having no arms, while others have arms but no legs. It was a bizarre dungeon floor but the four Champions of Olympus managed to tackle it.
