This is a naval shooting game where the player controls a stationary cannon placed near the bottom center of the screen. Warships of different sizes pass from left to right across the ocean background. The player must aim and fire cannonballs to hit the ships before they leave the screen. Each ship has multiple hit points, so it takes several shots to destroy them. The game includes a simple start menu and a calm ocean-inspired background with gentle music. The challenge increases as more ships appear with varying speed and toughness.