if (bulletid.big == 1)
{
    if (hspeed < 10)
        hspeed = 10;
    vspeed += random_range(3, -3);
}
if (bulletid.big == 0)
{
    if (hspeed < 0)
        hspeed = 0;
    hspeed += 2;
    vspeed *= 1.2;
}
with (bulletid)
    instance_destroy();