Instructions
Press the "Y" button on the Game Boy to stop the left reel. Try to stop it on either a blue or red seven, as aligned sevens offer the biggest payouts.
Tap "B" to stop the center reel. Try to stop it at the same symbol as the one on the left reel.
Press "A" to stop the right reel. To obtain a maximum payout, stop that reel so that it displays the same symbol as the other reels.