I need to build a roller coaster through this facility. But it needs to go through every wall and it can only go through that wall once. I am having a very hard time figuring out a configuration. I thought maybe you guys could help.
When you say it can only go through each wall once, what do you mean? like the track can only go through each wall once, or the train can only go through each wall once?
If it's the latter, it's impossible, if it's the former, then a shuttle coaster would work.