SMW Custom Overworld: 12 Worlds

Another overworld of mine, being one of the final ones to not use custom graphics or patches which also happened to end up testing the limits of how much levels I could fit in a vanilla SMW overworld.
Download the overworld here:
bin.smwcentral.net/u/58325/SMW%2528USA%2529%2B-%2B12Worlds.bps