You are a pilot, a time fighter, fighting a battle against aliens that are attacking the world in the air on land and in the seas. A time-portal, secretly invented by the great Leonardo da Vinci, will send you into the future to help fight the battle in five different time periods. Beware of the weather. For it can be rough in the snow and lightning rain. Tornados can blow your plane out of control forcing you to go the direction of the wind. Use the mouse to move and left click to shoot. Press space bar to drop bombs. Pause the game with the END key.