RTF is a global modification that replaces all towns in the game.

yeah, the worm thing is just speculation, it's known that they serve the Lord of Gluttony.

so the question is - maybe Cerberuses and worms are two different parallel branches of demons? I don't know, maybe there are small worms that can grow, but in general, I think that if a demon can grow heads, then it can also shed all its limbs, eating earth is the peak of gluttony X)

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Remember: each little imp could theoretically become a new ruler of Shi'o...

it just needs to live for a million years X)