public void Form1_Load(object sender, EventArgs e)
    {
        shootP = new PictureBox();
        shootP.Image = Properties.Resources.shoot_1;
        shootP.SizeMode = PictureBoxSizeMode.Zoom;
        shootP.Size = new Size(10, 72);
        ListShoot = new List<PictureBox>();
        int i = -1;
    }
    private void Form1_KeyDown(object sender, KeyEventArgs e)
 {
    if (e.KeyCode == Keys.Space)
    {
      control = false;
      shootP = new PictureBox();
      shootP.Image = Properties.Resources.shoot_1;
      shootP.SizeMode = PictureBoxSizeMode.Zoom;
      shootP.Size = new Size(10, 72);
      ListShoot.Add(shootP);
      timeShoot.Start();
    }
 }
 private void timeShoot_Tick(object sender, EventArgs e)
  {
    if (control == false)
    {
       foreach PictureBox shot in ListShot
       {
           shot.Location = new Point(spacecraft._imageBox.Location.X + 50, spacecraft._imageBox.Location.Y - 55);  // align the shoot with spacecraft
           shot.Top -= 40;
       }
       control = true;
    }
  }
  foreach PictureBox shot in ListShoot
{
   draw(shot);
}
shootP = new PictureBox();
    shootP.Image = Properties.Resources.shoot_1;
    shootP.SizeMode = PictureBoxSizeMode.Zoom;
    shootP.Size = new Size(10, 72);