Allowing people to continue building a game they already did for a previous jam makes me not really interested in joining this jam. Especially since there are completely different rules. What if I use a game from one minijam, and other designers use games from others, and then we're supposed to rate games based on their use of the limitation while also knowing what limitation applies to what game? And not to mention the fact that a game started from scratch has to compete with potentially ultra high-polished games that had significantly more time spent on them. Just my feedback. I don't expect the published rules to change.