diff --git a/games/bgm/bubble_bobble.mp3 b/games/bgm/bubble_bobble.mp3
new file mode 100644
index 0000000..898dec4
Binary files /dev/null and b/games/bgm/bubble_bobble.mp3 differ
diff --git a/games/bgm/game_over.wav b/games/bgm/game_over.wav
new file mode 100644
index 0000000..deb6987
Binary files /dev/null and b/games/bgm/game_over.wav differ
diff --git a/games/bgm/pingpongbat.wav b/games/bgm/pingpongbat.wav
new file mode 100644
index 0000000..c430dde
Binary files /dev/null and b/games/bgm/pingpongbat.wav differ
diff --git a/games/pong.py b/games/pong.py
index 6667806..89099d6 100644
--- a/games/pong.py
+++ b/games/pong.py
@@ -29,6 +29,15 @@
 
 pygame.init()
 
+pygame.mixer.init()  
+pygame.mixer.music.load("bgm/bubble_bobble.mp3") # 게임 bgm
+pygame.mixer.music.set_volume(0.3) # volume 조절 1 ~ 0.1
+pygame.mixer.music.play(-1) 
+
+game_over = pygame.mixer.Sound("bgm/game_over.wav")  # 종료 bgm
+pingpong = pygame.mixer.Sound("bgm/pingpongbat.wav") # 게임 효과음
+
+
 screen = pygame.display.set_mode((640,480),0,32)
 
 #Creating 2 bars, a ball and background.
@@ -167,10 +176,14 @@ def paused():
         if circle_y >= bar1_y - 7.5 and circle_y <= bar1_y + 42.5:
             circle_x = 20.
             speed_x = -speed_x
+            pygame.mixer.Sound.play(pingpong)
+
     if circle_x >= bar2_x - 15.:
         if circle_y >= bar2_y - 7.5 and circle_y <= bar2_y + 42.5:
             circle_x = 605.
             speed_x = -speed_x
+            pygame.mixer.Sound.play(pingpong)
+
     if circle_x < 5.:
         bar2_score += 1
         circle_x, circle_y = 320., 232.5
@@ -182,9 +195,28 @@ def paused():
     if circle_y <= 10.:
         speed_y = -speed_y
         circle_y = 10.
+        pygame.mixer.Sound.play(pingpong)
+
     elif circle_y >= 457.5:
         speed_y = -speed_y
         circle_y = 457.5
+        pygame.mixer.Sound.play(pingpong)
+        
+    if bar2_score == 10:  # ai가 10점 달성시 종료 bgm
+        pygame.mixer.music.stop() 
+        pygame.mixer.Sound.play(game_over)
+        game_over.set_volume(0.3)
+        # 게임 오버 메시지
+        msg = font.render("Game Over", True, (255, 255, 0)) 
+        screen.blit(msg, (230,260))
+        pygame.display.update()
+
+        # 4초 대기후 나가기
+        pygame.time.delay(4000)
+        pygame.quit()
+        exit()
+
+
 
     pygame.display.update()
             
diff --git a/games/rank.db b/games/rank.db
new file mode 100644
index 0000000..e68ee08
Binary files /dev/null and b/games/rank.db differ