Pearl Harbor: Zero Hour is a World War II air combat game. As the emphasis is on action, and not realism, it's an arcade game instead of a flight sim. Although the game is called Pearl Harbor, there is only one mission in which you fight that namesake battle. Additionally, there is an in-engine cut scene depicting the famous dawn raid on the US Pacific Fleet. The actual gameplay starts after the attack. You fly various American aircraft against the Japanese in ten missions that follow the course of the war in the Pacific Theater, including key battles like Midway, Guadalcanal, and Okinawa.