Copied from another comment of mine...
You can use the SAVE command in conjunction with an array.
First, you'd define the array, which must be numerical and will hold the data you want to save. Afterwards, you can use the save command by specifying the file type as DAT and specifying the array. E.g.:
DIM SAVARR[3]
SAVARR[0]=HP
SAVARR[1]=XP
SAVARR[2]=IDK
SAVE "DAT:FILENAME",SAVARR
0そうだね プレイ済み