[Duda] Una pequeña duda con el Tiro al blanco

Amigos, ¿si pongo una condicionante else dentro de la funcion shootingTarget, esta podria arrogar una alerta que le diga al usuario que falló?

<meta charset="UTF-8">

<canvas width="600" height="400"> </canvas>


<script>

    var screen = document.querySelector ("canvas");

    var pencil = screen.getContext("2d");

        pencil.fillStyle = "white";
        pencil.fillRect (0,0,600,400);

        var vectorRadius = 10;
        var randomX;
        var randomY;


function makingCircunference (sectorX,sectorY,sectorRadius,sectorColor){

    pencil.fillStyle = (sectorColor);
    pencil.beginPath();
    pencil.arc(sectorX,sectorY,sectorRadius,0,2*Math.PI);
    pencil.fill();
}


    function clearScreen (){

        pencil.clearRect(0,0,600,400);
    }


var vectorX = 0;


function makingTarget (vectorX,vectorY){

    makingCircunference(vectorX,vectorY,vectorRadius + 20,"red");
    makingCircunference(vectorX,vectorY,vectorRadius + 10,"white");
    makingCircunference(vectorX,vectorY,vectorRadius,"red");
}


        function randomTarget(maximumVector){

            return Math.floor(Math.random()*maximumVector);
        }


function updatingScreen (){

    clearScreen();
    randomX = randomTarget (600);
    randomY = randomTarget (400);
    makingTarget (randomX,randomY);
    vectorX++;
}


    setInterval(updatingScreen,900);


        function shootingTarget(target){

            var targetX = target.pageX - screen.offsetLeft;
            var targetY = target.pageY - screen.offsetTop;

                if ((targetX < randomX + vectorRadius) && 
                    (targetX > randomX - vectorRadius) &&
                    (targetY < randomY + vectorRadius) &&
                    (targetY > randomY - vectorRadius)){

                    alert ("You made the shoot, man!!");
                }

        }


    screen.onclick = (shootingTarget);


</script>