Melbourne Suburbs

Do you mean regional centres, or the entirety of Victoria? Might be a bit ambitious with 2,929 state suburbs!

As mentioned elsewhere, the UGB isn't a particularly useful definition of Metropolitan Melbourne given that it would have to include various gazetted localities that you would be fairly hard-pressed to call suburbs of Melbourne. As defined by Planning Victoria themselves: "The urban growth boundary (UGB) indicates the long-term limits of urban development and where non-urban values and land uses should prevail in metropolitan Melbourne". This is why is have only included suburbs that are part of a contiguous growth and have urban housing. I think it's good to stick to strict guidelines of what is and isn't part of Metropolitan Melbourne otherwise you run into the meme of "well Bacchus Marsh is part of Melbourne, nah actually Albury is part of Melbourne, nah actually Sydney is part of Melbourne."

As a good example, I recently added Manor Lakes and Mickleham as the contiguous growth extending from Wyndham Vale and Greenvale respectively has extended that far.

Also, if you're interested, I am in the process of updating the quiz to accommodate the new-ish boundaries for City of Melton since Fraser Rise now exists and Plumpton has been pushed further out.