A variable is like a sheet of paper that's been assigned a name (like MONEY, HEALTH, AMMO). You can write & read a different data (number or letter) on each sheet and reference the data by using the name assigned to the sheet.
An array is like a booklet of those sheets that are referenced by booklet name and page number. TREASURE[5] would be for page 5 of the booklet named TREASURE.
1そうだね プレイ済み