Her's all the OOB I could find. The only one with any real promise is either Caves if there's a faster set-up or Swamp since I was able to test it and it unlocks Rainforest, although I'm not sure it's any faster since you have to navigate the wasteland. Rainforest wouldn't unlock Mountains with how I'm doing it so for the moment it seems to not be useful. (Sorry if the video is kind of a mess. A lot of this was me experimenting and figuring this out for the first time. While I knew how to get OOB I don't know all of the side effects or what all you can do yet.)