 Each plane in Jane 's Attack Squadron is composed of forty @-@ five parts that may be removed or otherwise damaged in combat . Damage to these parts affects performance ; for example , a broken fuel line will leak , quickly decreasing the fuel gauge . Various adjustments may be made to the game 's realism , including an " arcade physics " option that drastically reduces flight difficulty . The game is packaged with the mission and physics editors that were used to develop it . 
