Area 1 (US: Round 1)[edit]
Welcome to the game. This area contains: twenty-two Large Invaders, twenty-two Medium Invaders, and eleven Small Invaders in a horizontally-moving formation; the Large ones are worth 100 points, the Medium ones 200 and the Small ones 300. They are also the originals, and that song heard from the Yamaha YM-2610 is a remix of the original theme.
Area 2 (US: Round 2)[edit]
This area, like the previous one, contains twenty-two Large Invaders, twenty-two Medium Invaders, and eleven Small Invaders in a horizontally-moving formation; but this time, when one is killed, the remainder of its column drops down to the bottom of the formation. This is the first of many surprises that the invaders will have in store for the two CG30.
Area 3 (US: Round 3)[edit]
This area contains only eighteen Large Invaders, eighteen Medium Invaders and nine Small Invaders in a horizontally-moving formation; but this time, when some of them are hit, they will "stretch" out and take 2-3 more hits to kill (for two or three times more than their original point values). Once you've cleared this area, you will proceed to the first "Cattle Mutilation" (unless you are playing the US "Super Space Invaders '91" - in which case you shall proceed to World 1B).