So at the last minute, I realized one of my other essays could be applicable for the UVA prompt:
Describe the world you come from and how that world shaped who you are.
The only problem is that, in the other essay, I don't really talk about my family or community or the city I grew up up - only about what I DID as a kid, ie what I played, etc, and how that has shaped who I am. D'you guys think this would fit the UVA prompt? Since the prompt is pretty open ended, I thought it could work, but I'd rather not risk seeming like I can't follow simple instructions. Thanks!
Of course, I'd have to read it to know for certain, but I think the other essay would be fine. Anything that saves you the work of writing an entirely new original essay is a good thing... :) Also, you could add a few short sentences about your community if you had to, right? The most important part of the prompt is "how that world shaped you"- if you address that sufficiently, then your essay is probably good to go.
I agree with Vulpix, the most important part of the essay is "how that world shaped you". If indeed ur childhood and what you played shaped you, then your essay is fine. I wuld still consider adding a few sentences about anything else that might interest them ( your background perhaps?)