2) I *think* the answer is yes, but don't take my word for it.
3) According to the manual, GTRI draws a triangle on screen and fill is with a color.
4) No, you cannot access files in folders separate from the one the current program is running from; however, you can easily copy needed files into the proper folder.
Also, regarding multiplayer, SmileBASIC does support local play, so you can...
0そうだね プレイ済み