diff --git a/src/env.py b/src/env.py
index 47f8532..6832b45 100644
--- a/src/env.py
+++ b/src/env.py
@@ -55,7 +55,7 @@ MUSIC_PATH = path.join(path.dirname(__file__), "..", "asset", "music")
 
 BG_PATH = path.join(ASSET_IMAGE_DIR, "background.png")
 SQUID_PATH = path.join(ASSET_IMAGE_DIR, "squid.png")
-SQUID2_PATH = path.join(ASSET_IMAGE_DIR, "squid2.png")
+SQUID2_PATH = path.join(ASSET_IMAGE_DIR, "squid2_02.png")
 
 IMG_ID_FOOD01_L = "food_01_L"
 IMG_ID_FOOD02_L = "food_02_L"
diff --git a/src/game.py b/src/game.py
index 5b6c074..213eaf4 100644
--- a/src/game.py
+++ b/src/game.py
@@ -156,15 +156,15 @@ class SwimmingSquid(PaiaGame):
         hit = pygame.sprite.collide_rect(self.squid1, self.squid2)
         if hit:
             if self.squid1.lv > self.squid2.lv:
-                self.squid1.collision_between_squids(COLLISION_SCORE["WIN"], self.sound_controller)
-                self.squid2.collision_between_squids(COLLISION_SCORE["LOSE"], self.sound_controller)
+                self.squid1.collision_between_squids(COLLISION_SCORE["WIN"], self.frame_count, self.sound_controller)
+                self.squid2.collision_between_squids(COLLISION_SCORE["LOSE"], self.frame_count, self.sound_controller)
             elif self.squid1.lv < self.squid2.lv:
-                self.squid1.collision_between_squids(COLLISION_SCORE["LOSE"], self.sound_controller)
-                self.squid2.collision_between_squids(COLLISION_SCORE["WIN"], self.sound_controller)
+                self.squid1.collision_between_squids(COLLISION_SCORE["LOSE"], self.frame_count, self.sound_controller)
+                self.squid2.collision_between_squids(COLLISION_SCORE["WIN"], self.frame_count, self.sound_controller)
             else:
                 # draw
-                self.squid1.collision_between_squids(COLLISION_SCORE["DRAW"], self.sound_controller)
-                self.squid2.collision_between_squids(COLLISION_SCORE["DRAW"], self.sound_controller)
+                self.squid1.collision_between_squids(COLLISION_SCORE["DRAW"], self.frame_count, self.sound_controller)
+                self.squid2.collision_between_squids(COLLISION_SCORE["DRAW"], self.frame_count, self.sound_controller)
 
     def get_data_from_game_to_player(self):
         """
diff --git a/src/game_object.py b/src/game_object.py
index d82e1c6..97e7a14 100644
--- a/src/game_object.py
+++ b/src/game_object.py
@@ -42,6 +42,7 @@ class Squid(pygame.sprite.Sprite):
         self._vel = LEVEL_PROPERTIES[1]['vel']
         self._lv = 1
         self.angle = 0
+        self._last_collision = 0
 
     def update(self, motion):
         # for motion in motions:
@@ -90,8 +91,11 @@ class Squid(pygame.sprite.Sprite):
             self._vel = LEVEL_PROPERTIES[new_lv]['vel']
             self._lv = new_lv
 
-    def collision_between_squids(self, collision_score, sound_controller: SoundController):
-        self._score += collision_score
+    def collision_between_squids(self, collision_score, frame, sound_controller: SoundController):
+        if frame - self._last_collision > 30:
+            self._score += collision_score
+            self._last_collision = frame
+            sound_controller.play_collision()
 
         new_lv = get_current_level(self._score)
 
diff --git a/src/sound_controller.py b/src/sound_controller.py
index e86d85e..053349f 100644
--- a/src/sound_controller.py
+++ b/src/sound_controller.py
@@ -30,6 +30,7 @@ class SoundController():
             self._fail = pygame.mixer.Sound(path.join(SOUND_PATH, "fail.mp3"))
             self._lv_up = pygame.mixer.Sound(path.join(SOUND_PATH, "lv_up.mp3"))
             self._lv_down = pygame.mixer.Sound(path.join(SOUND_PATH, "lv_down.mp3"))
+            self._collision = pygame.mixer.Sound(path.join(SOUND_PATH, "collision.mp3"))
         except Exception as e :
             self._is_sound_on = False
             traceback.print_exc()
@@ -58,4 +59,8 @@ class SoundController():
 
     @sound_enabled
     def play_lv_down(self):
-        self._lv_down.play()
\ No newline at end of file
+        self._lv_down.play()
+
+    @sound_enabled
+    def play_collision(self):
+        self._collision.play()