Build me a game in Python with Pygame that is a side scrolling platformer. Initially all I want to see on the screen is a character that I can move with the W A S and D keys. He should be standing on some blocks.

I want this done in a single python file and I don't want you to explain any of the code.
Sure! Below is a simple side-scrolling platformer game using Pygame. You can move the character with the W, A, S, and D keys. Please ensure you have Pygame installed (`pip install pygame`) before running the code.

```python
import pygame
import sys

# Initialize Pygame
pygame.init()

# Constants
WIDTH, HEIGHT = 800, 600
BLOCK_SIZE = 50
FPS = 60

# Colors
WHITE = (255, 255, 255)
BLUE = (0, 0, 255)
GREEN = (0, 255, 0)

# Set up the display
screen = pygame.display.set_mode((WIDTH, HEIGHT))
pygame.display.set_caption("Side Scrolling Platformer")

# Character settings
character_pos = [100, HEIGHT - BLOCK_SIZE - 100]
character_size = 50

# Block positions
blocks = [[x, HEIGHT - BLOCK_SIZE] for x in range(0, WIDTH, BLOCK_SIZE)]

# Game loop
clock = pygame.time.Clock()
while True:
    for event in pygame.event.get():
        if event.type == pygame.QUIT:
            pygame.quit()
            sys.exit()

    keys = pygame.key.get_pressed()
    if keys[pygame.K_a]:
        character_pos[0] -= 5
    if keys[pygame.K_d]:
        character_pos[0] += 5
    if keys[pygame.K_w]:
        character
 Here is a simple example of a side-scrolling platformer using Pygame:

```python
import pygame
import sys

# Initialize Pygame
pygame.init()

# Set up some constants
WIDTH, HEIGHT = 800, 600
PLAYER_SIZE = 32
GROUND_HEIGHT = HEIGHT - 64

# Set up some colors
WHITE = (255, 255, 255)
RED = (255, 0, 0)

# Create the game screen
screen = pygame.display.set_mode((WIDTH, HEIGHT))

# Create the player
player = pygame.Rect(WIDTH / 2, GROUND_HEIGHT - PLAYER_SIZE, PLAYER_SIZE, PLAYER_SIZE)
player_speed = 5

# Create a list of blocks
blocks = [pygame.Rect(i * PLAYER_SIZE, GROUND_HEIGHT - PLAYER_SIZE, PLAYER_SIZE, PLAYER_SIZE) for i in range(5)]

# Set up the game clock
clock = pygame.time.Clock()

# Game loop
while True:
    # Event handling
    for event in pygame.event.get