No problem! No worries about what you couldn't implement or didn't have time to balance out. I have participated in MVM's 15, 16, 18, 20, and 22, and there's always things that I wish I had caught/improved or had time to polish. And yeah, not everyone has the time to put in an absurd amount of hours into development. That's one of the great things about MVM though, its a very liberal jam compared to others and having a whole month helps to get at least something playable ready.