How to make randomly generated balloons that show up every time you shoot a bullet?

I'm trying to make it so that my game will randomly generated balloons at the top and push every other balloon down to make space for the new balloons when I shoot a bullet. I have 6 balloon classes and was trying to make them get randomly generated, but the codes I have tried to make for it is ending up in failures.

At first I tried to tell it when my bullet disappears then just print something but the problem is that the code I used would instantly make it disappear. I also tried drawing new balloons when the bullet collides with balloon's, but I'm I'm not sure where to place the balloons and how to move them.

This is what I tried

for bullet in bullets:
    if bullets.pop(bullets.index(bullet)):
        print("collide")

My full code

import pygame,math,random
pygame.init()

# Windowing screen width and height
width = 500
height = 500
window = pygame.display.set_mode((width,height))

# Name of window
pygame.display.set_caption("Game")

# The Background
background = pygame.image.load("img/BG.png")

def blitRotate(surf, image, pos, originPos, angle):
    # calcaulate the axis aligned bounding box of the rotated image
    w, h         = image.get_size()
    sin_a, cos_a = math.sin(math.radians(angle)), math.cos(math.radians(angle)) 
    min_x, min_y = min([0, sin_a*h, cos_a*w, sin_a*h + cos_a*w]), max([0, sin_a*w, -cos_a*h, sin_a*w - cos_a*h])

    # calculate the translation of the pivot 
    pivot        = pygame.math.Vector2(originPos[0], -originPos[1])
    pivot_rotate = pivot.rotate(angle)
    pivot_move   = pivot_rotate - pivot

    # calculate the upper left origin of the rotated image
    origin = (pos[0] - originPos[0] + min_x - pivot_move[0], pos[1] - originPos[1] - min_y + pivot_move[1])

    # get a rotated image
    rotated_image = pygame.transform.rotate(image, angle)

    # rotate and blit the image
    surf.blit(rotated_image, origin)
    
# Player class
class Player:
    def __init__(self,x,y,width,height,color):
        self.x = x
        self.y = y
        self.width = width
        self.height = height
        self.color = color
        self.speed = 4
        self.cannon = pygame.image.load("img/Cannon.png")
        self.cannon = pygame.transform.scale(self.cannon,(self.cannon.get_width()//2, self.cannon.get_height()//2))
        self.rect = pygame.Rect(x,y,width,height)
        self.hitbox = (self.x,self.y,30,30)
        self.image = self.cannon
        self.rect  = self.image.get_rect(center = (self.x, self.y))
        self.look_at_pos = (self.x, self.y)

        self.isLookingAtPlayer = False
        self.look_at_pos = (x,y)

        self.angle = 0
    def get_rect(self):
        self.rect.topleft = (self.x,self.y)
        return self.rect

    def get_pivot(self):
        player_rect = self.cannon.get_rect(center = self.get_rect().center)
        return player_rect.centerx, player_rect.top + 103

    def get_angle(self):
        pivot_abs = self.get_pivot()
        dx = self.look_at_pos[0] - pivot_abs[0]
        dy = self.look_at_pos[1] - pivot_abs[1]
        return math.degrees(math.atan2(-dy, dx))

    def get_top(self):
        pivot_x, pivot_y = self.get_pivot()
        angle = self.get_angle()
        length = 100
        top_x = pivot_x + length * math.cos(math.radians(angle))
        top_y = pivot_y - length * math.sin(math.radians(angle))
        return top_x, top_y

    def draw(self):
        self.rect.topleft = (self.x,self.y)
        pygame.draw.rect(window,self.color,self.hitbox)

        gun_size = self.image.get_size()
        pivot_abs = self.get_pivot()
        pivot_rel = (gun_size[0] // 2, 105)
        angle = self.get_angle() - 90
        
        pygame.draw.rect(window,self.color,self.rect)
        blitRotate(window, self.image,pivot_abs, pivot_rel, angle)
        
    def lookAt( self, coordinate ):
        self.look_at_pos = coordinate


        

# Players gun
class projectile(object):
    def __init__(self,x,y,dirx,diry,color):
        self.x = x
        self.y = y
        self.dirx = dirx
        self.diry = diry
        self.pin = pygame.image.load("img/Pin.png")
        self.pin = pygame.transform.scale(self.pin,(self.pin.get_width()//6, self.pin.get_height()//6))
        self.rect = self.pin.get_rect()
        self.center = ( self.x, self.y )
        self.speed = 10
        self.color = color
        self.hitbox = (self.x + 20, self.y, 30,40)
    def move(self):
        self.x += self.dirx * self.speed
        self.y += self.diry * self.speed
    def draw(self):
        self.rect.center = (round(self.x), round(self.y))
        
        angle = math.degrees(math.atan2(-self.diry, self.dirx)) - 90
        rotated_pin = pygame.transform.rotate(self.pin, angle)
        rotated_rect = rotated_pin.get_rect(center = self.rect.center)

        window.blit(rotated_pin, rotated_rect)
        self.hitbox = (self.x + 20, self.y,30,30)
        
# Green balloon
class Gballoon:
    def __init__(self,x,y,width,height,color):
        self.x = x
        self.y = y
        self.width = width
        self.height = height
        self.balloon = [pygame.image.load("img/Green_balloon" + str(i) + ".png") for i in range(1,2)]
        self.balloon2 = [pygame.image.load("img/Green_balloon" + str(i) + ".png") for i in range(1,7)]
        self.color = color
        self.speed = 2
        self.rect = pygame.Rect(x,y,width,height)
        self.fps = 10
        self.clock = pygame.time.Clock()
        self.next_frame_time = 0
        self.anim_index = 0
        self.hitbox = (self.x - 50, self.y - 18, 40, 40)
        self.balloon = [pygame.transform.scale(image,(image.get_width()//6, image.get_height()//6))for image in self.balloon]
        self.balloon2 = [pygame.transform.scale(image,(image.get_width()//6, image.get_height()//6))for image in self.balloon2]
        self.direction = "greenpop"
        self.direction = "balloon"
    def get_rect(self):
        self.rect.topleft = (self.x,self.y)
        return self.rect
    def draw(self):
        self.rect.topleft = (self.x,self.y)
        pygame.draw.rect(window,self.color,self.rect,2)
        pygame.draw.rect(window,self.color,self.hitbox)
        self.hitbox = (self.x + 35, self.y + 0, 40, 40)
        # calling the balloon and balloon2 in and image list
        if self.direction == "balloon":
            image_list = self.balloon
        elif self.direction == "greenpop":
            image_list = self.balloon2
        # Is it time to show next frame
        time_now = pygame.time.get_ticks()
        if (time_now > self.next_frame_time):
            # Time until the next game
            inter_time_delay = 1000 // self.fps
            self.next_frame_time = time_now + inter_time_delay
            # Showing next frame
            self.anim_index += 1
            if self.anim_index >= len(image_list):
                self.anim_index = 0

        if self.anim_index >= len(image_list):
            self.anim_index = 0
        green_image = image_list[self.anim_index]
                    

        green_rect = green_image.get_rect(center = self.get_rect().center)
        green_rect.centerx
        green_rect.centery += 5
        window.blit(green_image,green_rect)


class Bballoon:
    def __init__(self,x,y,width,height,color):
        self.x = x
        self.y = y
        self.width = width
        self.height = height
        self.balloon = [pygame.image.load("img/Blue_balloon" + str(i) + ".png") for i in range(1,2)]
        self.balloon2 = [pygame.image.load("img/Blue_balloon" + str(i) + ".png") for i in range(1,7)]
        self.color = color
        self.speed = 2
        self.rect = pygame.Rect(x,y,width,height)
        self.fps = 10
        self.clock = pygame.time.Clock()
        self.next_frame_time = 0
        self.anim_index = 0
        self.hitbox = (self.x - 50, self.y - 18, 40, 40)
        self.balloon = [pygame.transform.scale(image,(image.get_width()//6, image.get_height()//6))for image in self.balloon]
        self.balloon2 = [pygame.transform.scale(image,(image.get_width()//6, image.get_height()//6))for image in self.balloon2]
        self.direction = "greenpop"
        self.direction = "balloon"
    def get_rect(self):
        self.rect.topleft = (self.x,self.y)
        return self.rect
    def draw(self):
        self.rect.topleft = (self.x,self.y)
        pygame.draw.rect(window,self.color,self.rect,2)
        pygame.draw.rect(window,self.color,self.hitbox)
        self.hitbox = (self.x + 35, self.y + 0, 40, 40)
        # calling the balloon and balloon2 in and image list
        if self.direction == "balloon":
            image_list = self.balloon
        elif self.direction == "greenpop":
            image_list = self.balloon2
        # Is it time to show next frame
        time_now = pygame.time.get_ticks()
        if (time_now > self.next_frame_time):
            # Time until the next game
            inter_time_delay = 1000 // self.fps
            self.next_frame_time = time_now + inter_time_delay
            # Showing next frame
            self.anim_index += 1
            if self.anim_index >= len(image_list):
                self.anim_index = 0

        if self.anim_index >= len(image_list):
            self.anim_index = 0
        green_image = image_list[self.anim_index]
                    

        green_rect = green_image.get_rect(center = self.get_rect().center)
        green_rect.centerx
        green_rect.centery += 5
        window.blit(green_image,green_rect)


class Oballoon:
    def __init__(self,x,y,width,height,color):
        self.x = x
        self.y = y
        self.width = width
        self.height = height
        self.balloon = [pygame.image.load("img/Orange_balloon" + str(i) + ".png") for i in range(1,2)]
        self.balloon2 = [pygame.image.load("img/Orange_balloon" + str(i) + ".png") for i in range(1,7)]
        self.color = color
        self.speed = 2
        self.rect = pygame.Rect(x,y,width,height)
        self.fps = 10
        self.clock = pygame.time.Clock()
        self.next_frame_time = 0
        self.anim_index = 0
        self.hitbox = (self.x - 50, self.y - 18, 40, 40)
        self.balloon = [pygame.transform.scale(image,(image.get_width()//6, image.get_height()//6))for image in self.balloon]
        self.balloon2 = [pygame.transform.scale(image,(image.get_width()//6, image.get_height()//6))for image in self.balloon2]
        self.direction = "greenpop"
        self.direction = "balloon"
    def get_rect(self):
        self.rect.topleft = (self.x,self.y)
        return self.rect
    def draw(self):
        self.rect.topleft = (self.x,self.y)
        pygame.draw.rect(window,self.color,self.rect,2)
        pygame.draw.rect(window,self.color,self.hitbox)
        self.hitbox = (self.x + 35, self.y + 0, 40, 40)
        # calling the balloon and balloon2 in and image list
        if self.direction == "balloon":
            image_list = self.balloon
        elif self.direction == "greenpop":
            image_list = self.balloon2
        # Is it time to show next frame
        time_now = pygame.time.get_ticks()
        if (time_now > self.next_frame_time):
            # Time until the next game
            inter_time_delay = 1000 // self.fps
            self.next_frame_time = time_now + inter_time_delay
            # Showing next frame
            self.anim_index += 1
            if self.anim_index >= len(image_list):
                self.anim_index = 0

        if self.anim_index >= len(image_list):
            self.anim_index = 0
        green_image = image_list[self.anim_index]
                    

        green_rect = green_image.get_rect(center = self.get_rect().center)
        green_rect.centerx
        green_rect.centery += 5
        window.blit(green_image,green_rect)


class Pballoon:
    def __init__(self,x,y,width,height,color):
        self.x = x
        self.y = y
        self.width = width
        self.height = height
        self.balloon = [pygame.image.load("img/Pink_balloon" + str(i) + ".png") for i in range(1,2)]
        self.balloon2 = [pygame.image.load("img/Pink_balloon" + str(i) + ".png") for i in range(1,7)]
        self.color = color
        self.speed = 2
        self.rect = pygame.Rect(x,y,width,height)
        self.fps = 10
        self.clock = pygame.time.Clock()
        self.next_frame_time = 0
        self.anim_index = 0
        self.hitbox = (self.x - 50, self.y - 18, 40, 40)
        self.balloon = [pygame.transform.scale(image,(image.get_width()//6, image.get_height()//6))for image in self.balloon]
        self.balloon2 = [pygame.transform.scale(image,(image.get_width()//6, image.get_height()//6))for image in self.balloon2]
        self.direction = "greenpop"
        self.direction = "balloon"
    def get_rect(self):
        self.rect.topleft = (self.x,self.y)
        return self.rect
    def draw(self):
        self.rect.topleft = (self.x,self.y)
        pygame.draw.rect(window,self.color,self.rect,2)
        pygame.draw.rect(window,self.color,self.hitbox)
        self.hitbox = (self.x + 35, self.y + 0, 40, 40)
        # calling the balloon and balloon2 in and image list
        if self.direction == "balloon":
            image_list = self.balloon
        elif self.direction == "greenpop":
            image_list = self.balloon2
        # Is it time to show next frame
        time_now = pygame.time.get_ticks()
        if (time_now > self.next_frame_time):
            # Time until the next game
            inter_time_delay = 1000 // self.fps
            self.next_frame_time = time_now + inter_time_delay
            # Showing next frame
            self.anim_index += 1
            if self.anim_index >= len(image_list):
                self.anim_index = 0

        if self.anim_index >= len(image_list):
            self.anim_index = 0
        green_image = image_list[self.anim_index]
                    

        green_rect = green_image.get_rect(center = self.get_rect().center)
        green_rect.centerx
        green_rect.centery += 5
        window.blit(green_image,green_rect)


class Pballoon:
    def __init__(self,x,y,width,height,color):
        self.x = x
        self.y = y
        self.width = width
        self.height = height
        self.balloon = [pygame.image.load("img/Purple_balloon" + str(i) + ".png") for i in range(1,2)]
        self.balloon2 = [pygame.image.load("img/Purple_balloon" + str(i) + ".png") for i in range(1,7)]
        self.color = color
        self.speed = 2
        self.rect = pygame.Rect(x,y,width,height)
        self.fps = 10
        self.clock = pygame.time.Clock()
        self.next_frame_time = 0
        self.anim_index = 0
        self.hitbox = (self.x - 50, self.y - 18, 40, 40)
        self.balloon = [pygame.transform.scale(image,(image.get_width()//6, image.get_height()//6))for image in self.balloon]
        self.balloon2 = [pygame.transform.scale(image,(image.get_width()//6, image.get_height()//6))for image in self.balloon2]
        self.direction = "greenpop"
        self.direction = "balloon"
    def get_rect(self):
        self.rect.topleft = (self.x,self.y)
        return self.rect
    def draw(self):
        self.rect.topleft = (self.x,self.y)
        pygame.draw.rect(window,self.color,self.rect,2)
        pygame.draw.rect(window,self.color,self.hitbox)
        self.hitbox = (self.x + 35, self.y + 0, 40, 40)
        # calling the balloon and balloon2 in and image list
        if self.direction == "balloon":
            image_list = self.balloon
        elif self.direction == "greenpop":
            image_list = self.balloon2
        # Is it time to show next frame
        time_now = pygame.time.get_ticks()
        if (time_now > self.next_frame_time):
            # Time until the next game
            inter_time_delay = 1000 // self.fps
            self.next_frame_time = time_now + inter_time_delay
            # Showing next frame
            self.anim_index += 1
            if self.anim_index >= len(image_list):
                self.anim_index = 0

        if self.anim_index >= len(image_list):
            self.anim_index = 0
        green_image = image_list[self.anim_index]
                    

        green_rect = green_image.get_rect(center = self.get_rect().center)
        green_rect.centerx
        green_rect.centery += 5
        window.blit(green_image,green_rect)


class Rballoon:
    def __init__(self,x,y,width,height,color):
        self.x = x
        self.y = y
        self.width = width
        self.height = height
        self.balloon = [pygame.image.load("img/Red_balloon" + str(i) + ".png") for i in range(1,2)]
        self.balloon2 = [pygame.image.load("img/Red_balloon" + str(i) + ".png") for i in range(1,7)]
        self.color = color
        self.speed = 2
        self.rect = pygame.Rect(x,y,width,height)
        self.fps = 10
        self.clock = pygame.time.Clock()
        self.next_frame_time = 0
        self.anim_index = 0
        self.hitbox = (self.x - 50, self.y - 18, 40, 40)
        self.balloon = [pygame.transform.scale(image,(image.get_width()//6, image.get_height()//6))for image in self.balloon]
        self.balloon2 = [pygame.transform.scale(image,(image.get_width()//6, image.get_height()//6))for image in self.balloon2]
        self.direction = "greenpop"
        self.direction = "balloon"
    def get_rect(self):
        self.rect.topleft = (self.x,self.y)
        return self.rect
    def draw(self):
        self.rect.topleft = (self.x,self.y)
        pygame.draw.rect(window,self.color,self.rect,2)
        pygame.draw.rect(window,self.color,self.hitbox)
        self.hitbox = (self.x + 35, self.y + 0, 40, 40)
        # calling the balloon and balloon2 in and image list
        if self.direction == "balloon":
            image_list = self.balloon
        elif self.direction == "greenpop":
            image_list = self.balloon2
        # Is it time to show next frame
        time_now = pygame.time.get_ticks()
        if (time_now > self.next_frame_time):
            # Time until the next game
            inter_time_delay = 1000 // self.fps
            self.next_frame_time = time_now + inter_time_delay
            # Showing next frame
            self.anim_index += 1
            if self.anim_index >= len(image_list):
                self.anim_index = 0

        if self.anim_index >= len(image_list):
            self.anim_index = 0
        green_image = image_list[self.anim_index]
                    

        green_rect = green_image.get_rect(center = self.get_rect().center)
        green_rect.centerx
        green_rect.centery += 5
        window.blit(green_image,green_rect)
        

        


        


# The color white
white = (255,255,255)

# The xy cords, width, height and color of my classes[]

playerman = Player(350,385,34,75,white)

green1 = Gballoon(180,200,110,40,white)
blue1 = Bballoon(330,250,110,40,white)
orange1 = Oballoon(100,200,110,40,white)
pink1 = Oballoon(300,250,110,40,white)
purple1 = Pballoon(400,250,110,40,white)
red1 = Rballoon(300,200,110,40,white)

# A list for my classess
 
greens = [green1]
blues = [blue1]
oranges = [orange1]
pinks = [pink1]
purples = [purple1]
reds = [red1]



# This is where my balloons get hit by the bullet and disappers
# redrawing window
def redrawwindow():
    window.fill((0,0,0))

    # Drawing the window in
    window.blit(background,(0,0))

    # drawing the player in window
    playerman.draw()

    # Drawing all my ballons in window
    
    for Gballoon in greens:
        Gballoon.draw()

    for Bballoon in blues:
        Bballoon.draw()

    for Oballoon in oranges:
        Oballoon.draw()

    for Pballoon in purples:
        Pballoon.draw()

    for Rballoon in reds:
        Rballoon.draw()


    # Drawing the players bullet
    for bullet in bullets:
        bullet.draw()

# Frames for game
fps = 30
clock = pygame.time.Clock()
#projectile empty list
bullets = []
# main loop
run = True
while run:
    clock.tick(fps)
    for event in pygame.event.get():
        if event.type == pygame.QUIT:
            run = False


        if event.type == pygame.MOUSEBUTTONDOWN:

            if len(bullets) < 6700:
                mousex, mousey = pygame.mouse.get_pos()
                start_x, start_y = playerman.get_top()
                mouse_x, mouse_y = event.pos
                dir_x, dir_y = mouse_x - start_x , mouse_y - start_y
                distance = math.sqrt(dir_x**2 + dir_y**2)
                if distance > 0:
                    new_bullet = projectile(start_x, start_y, dir_x/distance, dir_y/distance, (0,0,0))
                    bullets.append(new_bullet)

    for bullet in bullets[:]:
        bullet.move()
        if bullet.x < 0 or bullet.x > 900 or bullet.y < 0 or bullet.y > 900:
            bullets.pop(bullets.index(bullet))



    # Making game detect when to del the ballon
    for bullet in bullets:
        for Gballoon in greens:
            if bullet.rect.colliderect(Gballoon.hitbox):
                Gballoon.direction = "greenpop"
                bullets.pop(bullets.index(bullet))

    for Gballoon in greens:
        for one in range(len(greens)-1,-1,-1):
            if greens[one].anim_index == 5:
                del greens[one]

    for i in range(len(greens)):
        for j in range(i+1, len(greens)):
            if greens[i].rect.colliderect(greens[j]): 
                greens[i].direction = "greenpop"
                greens[j].direction = "greenpop"

    for bullet in bullets:
        if bullets.pop(bullets.index(bullet)):
            print("collide")


    # gun rotation
    mousex, mousey = pygame.mouse.get_pos()
    if not playerman.isLookingAtPlayer:
        playerman.lookAt((mousex, mousey))

   
                    
    # telling game that key means when a key get pressed
    keys = pygame.key.get_pressed()

    # The player moving when the key a is pressed
    if keys[pygame.K_a] and playerman.x > playerman.speed:
        playerman.x -= playerman.speed

    # The player moving when the key d is pressed
    if keys[pygame.K_d] and playerman.x < 500 - playerman.width - playerman.speed:
        playerman.x += playerman.speed

    # Calling the redraw function
    redrawwindow()
    # updating game
    pygame.display.update()
# quiting the game
pygame.quit()