Congratulations! After one really long explanation, I've told you all I know about this! I highly recommend going to the smileBASIC website and downloading the list of commands that you can use in SmileBASIC. As far as I know, you can find this all in the app, but they have the commands grouped together in topic-related sections. This helped me by reading and trying their examples.
1そうだね プレイ済み