Создал игру на питоне но игра не отвечает

 import pygame

pygame.init()
screen = pygame.display.set_mode((460, 230))
pygame.display.set_caption("lol")
icon = pygame.image.load('photo/i.webp')
pygame.display.set_icon(icon)

bg=pygame.image.load('photo/font.webp')
walk_left = [pygame.image.load('playerr/1.png'),
             pygame.image.load('playerr/2.png'),
             pygame.image.load('playerr/3.png'),
             pygame.image.load('playerr/4.png'),
             pygame.image.load('playerr/5.png'),
             pygame.image.load('playerr/6.png'),
             pygame.image.load('playerr/7.png'),
             pygame.image.load('playerr/8.png'),
             pygame.image.load('playerr/9.png'),
             pygame.image.load('playerr/10.png'),
              ]
walk_right = [pygame.image.load('playerr/11.png'),
             pygame.image.load('playerr/12.png'),
             pygame.image.load('playerr/13.png'),
             pygame.image.load('playerr/14.png'),
             pygame.image.load('playerr/15.png'),
             pygame.image.load('playerr/16.png'),
             pygame.image.load('playerr/17.png'),
             pygame.image.load('playerr/18.png'),
             pygame.image.load('playerr/19.png'),
             pygame.image.load('playerr/20.png'),
              ]

player_anim_count = 0
bg_x = 0

player_speed = 5
player_x = 100
player_y = 50

is_jump = False
jump_count = 7

bg_sound = pygame.mixer.Sound('music/mis.mp3')

running = True
while running:

   screen.blit(bg,(bg_x,0))
   screen.blit(bg,(bg_x + 460, 0))

   keys = pygame.key.get_pressed()
   if keys[pygame.K_LEFT]:
       screen.blit(walk_left[player_anim_count],(player_x,player_y))
   else:
       screen.blit(walk_right[player_anim_count],(player_x,player_y))
   if keys[pygame.K_LEFT] and player_x > 50:
       player_x -= player_speed
   elif keys[pygame.K_RIGHT] and player_x < 200:
      player_x += player_speed
   if not is_jump:
      if keys[pygame.K_SPACE]:
          is_jump = True
   else:
      if jump_count >= -7:
         if jump_count > 0:
             player_y -= (jump_count ** 2) / 2
         else:
            player_y += (jump_count ** 2) / 2
         jump_count -= 1
      else:
         is_jump = False
         jump_count = 7
   if player_anim_count == 9:
       player_anim_count = 0
   else:
       player_anim_count += 1
   bg_x -= 2
   if bg_x == -460:
       bg_x = 0
   pygame.display.update()
for event in pygame.event.get():
   if event.type==pygame.QUIT:
      running=False
      pygame.quit