MY LIFE'S FIRST GAME I CREATED

IF SOMEONE LIKES THIS CODE PLEASE COMMENT BELOW ABOUT YOUR FEEDBACK.........

import pygame
import random
import math
from pygame import mixer


pygame.init()

# screen management
size = (800, 600)
screen = pygame.display.set_mode(size)

#game title
pygame.display.set_caption('OCTA SHOOT')

#icon title
a = pygame.image.load('octa.png')
pygame.display.set_icon(a)
#player
playerimg = pygame.image.load('octopus4.png')
playerx = 370
playery = 480
playerx_change = 0
#enemy
enemyimg = []
enemyx = []
enemyy = []
enemyx_change = []
enemyy_change = []
num_of_enemies = 6
for i in range(num_of_enemies):
    enemyimg.append(pygame.image.load('enemy.png'))
    enemyx.append(random.randint(0, 798))
    enemyy.append(random.randint(50, 150))
    enemyx_change.append(1)
    enemyy_change.append(40)
# bullet
bulletimg = pygame.image.load('sun.png')
bulletx = 0
bullety = 480
bulletx_change = 0
bullety_change = 2
bullet_state = "ready"

# Score
score = 0
score_value = 0
font = pygame.font.Font('freesansbold.ttf', 32)

textx = 10
texty = 10

# gameover
cmcbccc = pygame.font.Font('freesansbold.ttf', 64)



def showscore(x,y):
    score = font.render("Score :" + str(score_value), True, (255, 255, 255))
    screen.blit(score, (x,y))
def game_over_text():
    harami_tatto = font.render("YOU SHIT", True, (255,255,255))
    screen.blit(harami_tatto, (200, 250))
def player(x,y):
    screen.blit(playerimg,(x,y))

def enemy(x,y,i):
    screen.blit(enemyimg[i],(x,y))

def fire_bullet(x,y):
    global bullet_state
    bullet_state = "fire"
    screen.blit(bulletimg, (x+10,y+10))


def isCollision(enemyx, enemyy, bulletx, bullety):
    ade = enemyy-bullety
    distance = math.sqrt(math.pow(enemyx-bulletx, 2) + (math.pow(ade, 2)))
    if distance < 27:
        return True
    else:
        return False



# game loop
pol = True
# background
background = pygame.image.load('background1.png')
# failed mixer
mixer.music.load("amanspecial.mp3")
mixer.music.play(loops=True)
while pol:
    screen.fill((0,0,0))
    # background
    screen.blit(background, (0,0))
    for event in pygame.event.get():
        if event.type == pygame.QUIT:
            pol = False
        if event.type == pygame.KEYDOWN:
            if event.key == pygame.K_LEFT:
                playerx_change = -1
            elif event.key == pygame.K_RIGHT:
                playerx_change = 1
            elif event.key == pygame.K_SPACE:
                if bullet_state == 'ready':
                    haramkhor = mixer.Sound('laugh.mp3')
                    haramkhor.play()
                    bulletx = playerx
                    fire_bullet(bulletx, bullety)
        if event.type == pygame.KEYUP:
            if event.key == pygame.K_LEFT or event.key == pygame.K_RIGHT:
                playerx_change = 0


    playerx += playerx_change

    if playerx <= 0:
        playerx = 0
    elif playerx >= 736:
        playerx = 736

    enemyx += enemyx_change
    #enemy movement
    for i in range(num_of_enemies):
        if enemyy[i] > 440:
            for j in range(num_of_enemies):
                enemyy[j] = 2000
            game_over_text()
            break
        enemyx[i] += enemyx_change[i]
        if enemyx[i] <= 0:
            enemyx_change[i] = 1
            enemyy[i] += enemyy_change[i]
        elif enemyx[i] >= 736:
            enemyx_change[i] = -1
            enemyy[i] += enemyy_change[i]
    # collision
        colision = isCollision(enemyx[i], enemyy[i], bulletx, bullety)
        if colision:
            haramkhory = mixer.Sound('sounds.mp3')
            haramkhory.play()
            bullety = 480
            bullet_state = "ready"
            score += 1
            score_value += 1
            print(score)
            enemyx[i] = random.randint(0, 735)
            enemyy[i] = random.randint(50, 150)
        enemy(enemyx[i], enemyy[i], i)
    #bullet fixes
    if bullety <= 0 :
        bullety = 480
        bullet_state = "ready"
    if bullet_state == "fire":
        fire_bullet(bulletx, bullety)
        bullety -= bullety_change

    player(playerx, playery)
    showscore(textx, texty)
    pygame.display.update()

THESE ALL THE PICTURES BELOW I USED IN THIS GAME