timer += 1;
if (timer < 5)
{
    if (image_yscale < 1)
        image_yscale += 0.25;
    if (image_alpha < 1)
        image_alpha += 0.15;
}
if (timer > 6)
{
    image_yscale -= 0.25;
    image_alpha -= 0.2;
}
if (timer > 9)
    instance_destroy();