private void Picexit_Click(object sender, EventArgs e)
 {
     TM_NguoiHung.Dispose();
     TM_CotTruyen.Dispose();
     TM_BiaVang.Dispose();
     TM_RanDom.Dispose();
     Application.Exit();
 }
        private void TM_BiaVang_Tick(object sender, EventArgs e)
        {
            foreach (Control x in this.Controls)
            {
                if (x is PictureBox && x.Tag == "beer" && x.Visible == true)
                {
                    if (x.Top > 615)
                    {
                        x.Top = 12;

                        TM_RanDom.Start();
                    }
                    else
                    {
                        x.Top += speed;
                        if (x.Top > 300)
                        {
                            hotro.picbiavo(x.Left).Visible = false;
                        }
                    }
                }
                if (x is PictureBox && x.Tag == "beer")
                {
                    if (x.Bounds.IntersectsWith(pic_nguoi.Bounds))
                    {
                        x.Top = 12;
                        TM_RanDom.Start();
                        score++;
                    }
                    if (x.Top >= 590)
                    {
                        x.Top = 12;
                        TM_RanDom.Start();
                        miss++;
                        this.Controls.Add(hotro.picbiavo(x.Left));
                    }
                }
                speed          = hotro.tangtocdo(score, speed);
                lbl_score.Text = "Score :" + score;
                lbl_miss.Text  = "Missed :" + miss;
                if (miss >= 5)
                {
                    TM_BiaVang.Dispose();
                    TM_NguoiHung.Dispose();
                    TM_RanDom.Dispose();
                    GameOver();
                }
            }
        }