pygame_tutorial_0.py (Create a blue rectangle on a lavender background)
pygame_tutorial_1.py (Create a rectangle that changes color every time you click)
pygame_tutorial_2.py (Create a rectangle that changes color every time you click on it)
pygame_tutorial_3.py (Create a rectangle that moves back and forth and changes color every time you click on it)
pygame_tutorial_4.pp (Create a cute dog that moves back and forth and changes the background color every time you click on it)
pygame_tutorial_dog.py (Create a cute dog that bounces around and changes the background color every time you pet it)
pygame_tutorial_mole.py (Create a cute mole that bounces around and speeds up every time you whack it)
pygame_tutorial_ideas.py (Displays some ideas to improve the game)