Negative score in catching game?

1

I’m trying to edit the actionscript of catching [COLOR=darkgreen]game[/COLOR] in which a object fall from top to bottom and if the catcher fail to catch the object and the object hit the bottom, the score is subtracted.

I got my code from http://flashgameu.com/Catching_Game_…12-131621.html

Here’s the code
Code:

package {
import com.greensock.*;

import flash.display.*;
import flash.events.*;
import flash.text.*;
import flash.utils.Timer;
import flash.utils.getDefinitionByName;

public class CatchingSkittles extends MovieClip {
    var girlmouth:GirlMouth;
    var girlmouthfront:GirlMouthFront;
    var nextObject:Timer;
    var objects:Array = new Array();
    var score:int = 0;
    const speed:Number = 7.0;
    
    public function CatchingSkittles() {
        girlmouthfront = new GirlMouthFront();
        girlmouthfront.y = -49.00;
        girlmouth = new GirlMouth();
        girlmouth.y = 308.55;
        addChild(girlmouth);
        girlmouth.addChild(girlmouthfront);
        setNextObject();
        addEventListener(Event.ENTER_FRAME, moveObjects);
    }
    
    public function setNextObject() {
        nextObject = new Timer(1000+Math.random()*1000,1);
        nextObject.addEventListener(TimerEvent.TIMER_COMPLETE,newObject);
        nextObject.start();
    }
    
    public function newObject(e:Event) {
        var goodObjects:Array = ["Red","Purple","Yellow","Orange","Green"];
        
        if (Math.random() < .5) {
            var r:int = Math.floor(Math.random()*goodObjects.length);
            var classRef:Class = getDefinitionByName(goodObjects[r]) as Class;
            var newObject:MovieClip = new classRef(); 
            newObject.typestr = "good";
        } else {
            r = Math.floor(Math.random()*goodObjects.length);
            classRef = getDefinitionByName(goodObjects[r]) as Class;
            newObject = new classRef(); 
            newObject.typestr = "good";
        }
        newObject.x = Math.random()*500;
        addChild(newObject);
        objects.push(newObject);
        setNextObject();
    }
    
    public function moveObjects(e:Event) {
        for(var i:int=objects.length-1;i>=0;i--) {
            objects*.y += speed;
            if (objects*.y > 425) {
                
                removeChild(objects*);
                objects.splice(i,1);
            }
            if (objects*.hitTestObject(girlmouthfront)) {
                if (objects*.typestr == "good") {
                    score += 5;
                } else {
                    score += 5;
                }
                if (score < 0) score = 0;
                scoreDisplay.text = "Score: "+score;
                removeChild(objects*);
                objects.splice(i,1);
            }
        }  
        girlmouth.x = mouseX;
    }
}

}
Help! It’s for my final project.

In addition, how do I end the game after the catcher fail to catch at least 5 objects to go to “game over” screen with final score displayed?