Hi there this will be my 6th Jam. I also placed 2nd Place in BGJ#3. If your working with a team I highly suggest you guys have regular daily meetings for a 72 hour jam. Discuss your work that's being done, game ideas, struggles, and reworking. As a team, it all comes down to communication, dedication, and understanding of time. If your solo I suggest you really focus on your time, you have less than you realize. While solo you need to get your main mechanics down and fix non game breaking bugs later. Good luck!