forces the interpreter to run the code starting from the label no matter what.
ACLS doesn't just clear text, it also clears sprite/bg and graphical data, which is why people love it so much. You should put it at the beginning of all your programs, as previously mentioned by SomeThing. It makes sure you don't have bits of data left over from last program.
OPTION STRICT forces you to do lots of
0そうだね プレイ済み