Dual Town - Since I have a load of DS and 3DS stuff, the south portion/bottom screen would be the area to talk to people like Kirby and relax. The north portion/top screen would be the area where all the action happens, where you would fight Mario, Pókemon, and more, with the final boss being the Homebrew Laucher and Universal Updater (I have a hacked 3ds), throwing tons of Nintendo- and fan-made for their attacks. If you did the Snowgrave route in ch. 3, you would brick the system, leaving everybody a froze, glitchy mess.