Crisis Force

Crisis Force is a 1991 vertically scrolling shooter video game developed and published by Konami for the Family Computer. It was only released in Japan. The player controls one of two fighter ships piloted by Asuka and Maya, a pair of twin siblings descended from the ancient civilizations of Mu, who must save the world from a breed of artificial monsters from the lost civilization of Atlantis. The main feature of the game system is the player's ability to transform its ship in one of three different forms, each with its unique attack method.