Code

import pygame
from pygame.locals import *
import os
import sys
import math
pygame.init()


#Initialize Background and sprites
width, height = 1000, 800
screen = pygame.display.set_mode((width, height))
pygame.display.set_caption("Barbie Dash")
bg2 = pygame.image.load('Background2.jpeg')
barbie = pygame.image.load('Character1.png')
barbie = pygame.transform.scale(barbie, (100, 200))
bg0 = 0.0
bg02 = bg2.get_width()
red = (255, 0, 0)


#Player Class
class Player(pygame.sprite.Sprite):
    def __init__(self):
        super().__init__()
        self.image = barbie
        self.rect = self.image.get_rect()
        self.rect.center = (width // 2, height - 50)
        self.velocity = 0
        self.jump_height = -20

    def update(self):
        self.velocity += 1
        self.rect.y += self.velocity
        if self.rect.bottom > height:
            self.rect.bottom = height
            self.velocity = 0

    def jump(self):
        if self.rect.bottom == height:
            self.velocity = self.jump_height

            
#Obstacle Class
class Obstacle(pygame.sprite.Sprite):
    def __init__(self, x, y, width, height, speed):
        super().__init__()
        self.image = pygame.Surface((width, height))
        self.image.fill(red)
        self.rect = self.image.get_rect()
        self.rect.bottomright = (x, y)
        self.speed = speed

    def update(self):
        self.rect.x -= self.speed
        if self.rect.right < 0:
            self.rect.left = width
            self.rect.centery = height - 50


#Change background
def redrawGameWindow():
    global walkCount    
    screen.blit(bg2, (0,0))



#Run the Game
allSprites = pygame.sprite.Group()
player = Player()
obstacle = Obstacle(width, height, 50, 50, 5)
allSprites.add(player, obstacle)
clock = pygame.time.Clock()
speed = 100

run = True
while run:
    keys = pygame.key.get_pressed()


    for event in pygame.event.get():
        if event.type == pygame.QUIT:
            pygame.quit()
            sys.exit()
        elif event.type == pygame.KEYDOWN:
            if event.key == pygame.K_UP:
                player.jump()
                
    redrawGameWindow() 
    bg0 -= 1.4  
    bg02 -= 1.4

    if bg0 < bg2.get_width() * -1:  
        bg0 = bg2.get_width()
    
    if bg02 < bg2.get_width() * -1:
        bg02 = bg2.get_width()

    for event in pygame.event.get():  
        if event.type == pygame.QUIT: 
            run = False    
            pygame.quit() 
            quit()
    
        if event.type == USEREVENT+1: 
            speed += 1 

    allSprites.update()
    allSprites.draw(screen)
    clock.tick(60)
    pygame.display.flip()
pygame.quit()