After a quick Google search, I found out that the surrounding green walls, curved roofs, and skylights also served a
calming purpose for travelers, inspired by the principles of biophilic design that's meant to
put people at ease by mimicking
nature's patterns.
While I couldn't
put the game down for long periods due to the addicting
nature of its
calm game play (something it shares with another Nintendo series, Animal Crossing) the whole experience is pretty much over in about 6 - 8 hours if you're trying to unlock everything.