(This is what I theorize is Joseph’s story so if I miss anything there please let me know)
Joseph used to live with his prostitute mom and abusive father for most of his life until his father left and never came and in SML Movie the To-Go Box where it turns out he mysteriously died. Joseph would continue to living with his mom until the night of Halloween in 2015 where his mom won the lottery and left Joseph to start a new life without him and left a plastic skeleton in her place and money to buy food. After waking up with a hammer in his hand, Joseph would believe he killed his mom and start to mentally breakdown and keep her body in his house as he felt guilty, eventually Joseph’s trailer would lose power and water and due to loneliness would have Screwballs, two fish (both died) and a dog that died (Joseph grew a habit of keeping dead things in his house). All of this would eventually break Joseph’s mind and create a different version of Joseph that appears only after Joseph falls asleep (SML Movie Joseph moves in) and would eventually lead to Joseph cutting his neighbor’s throat and killing a cow and keeping it’s heart. Two years later on Halloween of 2017, Joseph’s mom comes out of hiding to tell Joseph the truth, abandoning him once again (there was rich Joseph but we don’t talk about that anymore). In SML Movie the To-Go Box, Joseph finds out his dad is dead after being teleported into his coffin and later on would forever be tormented by the same repeating nightmare shown in. SML Movie the Dream Machine. After that Joseph would continuously hang out in Junior’s house while living in a dumpster. I don’t truly believe the puppet version truly depicts Joseph as an abnormally skinny black male that smells of trash and of sewage, you could see his bones and organs making indents in his skin. A sort of undead child, allay on the verge of death ethereally damned to forever forced pay for his father’s misdeeds.