y : number The y coordinate from which bullets are fired. This is the same as Weapon.fireFrom.y, andcan be overridden by the Weapon.fire arguments. Source code: plugins/weapon/WeaponPlugin.js (Line 1246)

ignoreDestroy : boolean A group with ignoreDestroy set to true ignores all calls to its destroy method. Inherited From Phaser.Group#ignoreDestroy Source code: core/Group.js (Line 107)