Developed during a intro to programming course utilizing Python Crash Course 2nd edition
if 'import pygame' throws an error, open a terminal instance and run:
> pip install pygame
This will then allow you to run the main alien_invasion.py file.
When run, python will open a seperate window that will have your game in it.
Program runs a basic game where alien ships approach your spaceship. By using the arrow keys you move your spaceship left and right and can fire bullets with the space bar.