So if one persons town has the square grass and another person has the circle grass does that determine what set of items appear in Nook's Homes? Or in any store regardless? What about in Japan or the United States? do they have rare items that only they have and not Canada? Does the games codes generate like this or is it all the same in all English versions? This has been on my mind since I saw the trailer for ACNL before it came out and I swear to god I saw an Astro Fence. But it could have been the beta testing version Nintendo probably removed it in the final stage.