I don't know much about Deltarune, but I appreciated the humor in the Sugary Spire demo (yes, you can find it!!! And it's not a joke!)
Briefly about the headcanon:
Coneball appears in the spirit of the father. The character is soft. In fact, he may not keep track of the child and… As an example, it already proves that the son started smoking because of his uncle. However, Coneball tries to keep up with everything (yes, he is a hard worker.. You know who Conehead took after)
Sucrose Cherry appears in the spirit of the mother. But unlike Coneball, she has an explosive temper. Despite her temper, she can calm down and be gentle towards loved ones. She rarely scolds her son (The Conehead took after his mother a little in character)
Ice Pop is the same uncle who can spend most of the time with Coneboy (nephew) and tell him all sorts of stories. Although I do not deny the fact that he let the boy try to smoke (like an adult.. Ahah). And you will be surprised, but he didn’t get paid for his joint