SlowTimesurf working properly now

Main.py

@@ -44,14 +44,21 @@ def play():
 ########################## LAYER 0 END
 
 ########################## LAYER 1
-        slowsurf.place(window)
-        if slowsurf.collide(player.player_rect):
-            enemy.vel -= 0.1
-            enemy2.vel -= 0.1
-            print("Colliding !")
+        if slowsurf.switch == True:
+            slowsurf.place(window)
+            if slowsurf.collide(player.player_rect):
+                print("Colliding !")
+                slowsurf.switch = False
         else:
-            enemy.vel = 3
-            enemy2.vel = 3
+            if slowsurf.timer >= 0:
+                slowsurf.timer -= 1
+                enemy.vel = 3 - 2
+                enemy2.vel = 3 - 2
+                enemy.bul_cooldown += 1.5
+                enemy2.bul_cooldown += 1.5
+            else:
+                enemy.vel = 3
+                enemy2.vel = 3
 
         player.teleportation()
         player.shoot(window)

surfaces.py

@@ -21,6 +21,8 @@ class SlowTimeSurf:
         self.height = 64
         self.color = (0,0,0)
         self.rect = pygame.Rect(self.x, self.y, self.width, self.height)
+        self.switch = True
+        self.timer = 500
     def place(self,window):
         pygame.draw.rect(window,self.color,self.rect)
         window.blit(timesurf_image,(self.rect[0], self.rect[1]))