the idea
this ladder takes the password game's trick and points it at a funeral. each rule shows up only once every rule before it holds. if you saw all eight at the start, it would read like a form. seeing them one at a time is where the joke comes from.
the turn
rule 3 asks you to write about someone the speaker didn't like. rule 7 then tells you the speaker is the person who died. the dislike you already wrote hasn't changed a word, but it now reads as self-loathing.
rule 8 turns the whole thing toward grace. a dark comedy that ends on the bleakest note it can find is just edgy, so the last lines have to give the room something.
the words
the banned list takes out the easy funeral vocabulary: good, kind, generous, friend, loved. it bans the stems, so "lovely" and "friendship" are out too. the 55-word limit shows up after that, so whatever you used to fill the gap has to be short.