Twin Hawk is a vertical scrolling shooter with a top-down view. Your goal is to shoot all enemies along the way. You only have a standard gun on your plane, and no bombs. Instead of bombs, you can call helper planes. These planes will form a circle around you and help you destroy all enemies.
As you progress, you'll get the chance to collect power-ups by shooting transport trucks. When these are destroyed, they release a power-up. There are three types: a weapon upgrade that gives you a wider and more powerful shot, calls for more helper planes, and extra lives.