//this is all the information on how my game pause. If it is of any use, I'm using A.P.E. as a base.

public class Global
	{
	public static var CurrentWorld:World;
        }

public class Game extends World
	{
            override public function begin():void
		{

			Global.level = 0;

			nextlevel();
		}

		override public function update():void
		{
                    if (Input.pressed(Global.keyR)) //Pause or unpause the game
	            {
		     gotoMenu();
	            }
                }

                protected function gotoMenu ():void
                {
	             Global.CurrentWorld = this;
	             FP.world = new pmenu;
                 }
public class pmenu extends World
	{
            public function pmenu()
		{
			var screencap:Image = new Image(FP.buffer.clone());
			addGraphic(screencap, 10);
                        FP.tween(screencap, {alpha: 0}, 30, {ease:Ease.sineOut, tweener:this});
                 }
            override public function update():void
		{
                 if ( Input.pressed( Global.keyR ) ) { unpause();}
                }

             protected function unpause():void
		{
			FP.world = Global.CurrentWorld;
		}