var tempa;
while(my)
{
my.x -= 3* time;
if (my.x < -3600)
{
my.y += 10*time_step;
if (my.tilt <= 15){
my.tilt += 5*time_step;
}
int(tempa);
if(tempa == 8)
{
ent_create(bullet1,vector(my.x-20,my.y,my.z),move_bullet1);
}
tempa += 1;
tempa %=9;//must be one higher then the one in the if(tempa,enz.
}
wait (1);
}

change tempa the red parts for longer ore shorter