1. This means that I'd you prefix the object list with something like "You see:" or "Objects here:" (via the theme{} section) then you are not allowed to use more than two words and not allowed to use this word allocation to embed a status message. The text must never change from "you see" for example.
2. Yes.
3. Yes, you can change location descriptions and response messages but each instance of a location description must be max two words and each instance of a response must be max six words.
4. The start end messages can be three sentences of any length. Examine text could be as many sentences as you like providing it's a max of six words.
5. Yes
6. Technically there should be no postgame, but if you want to do it, I think I'll file this under "bonus" and allowed, unless the endgame is something significant.