Based on the rules, you would send the game as it was by day 7 as your official "incomplete" entry; then you could submit additional post-jam updates.
And what can I do if I don't have the game as it was by day 7? Can I still post it somewhere in the jam?
in this case, since you'll mark as incomplete, it should be fine to upload it and put a note in the game page that the game wasn't complete by day 7 but you uploaded a day 9 build to showcase your ideas.
