The Space Invaders game using Python and the pygame package.
In general: In Alien Invasion, the player controls the mothership. The player can control the mothership either with WASD keysor the arrows for moving, and left mouse click for shooting. The player needs to destroy the ufos that are moving, if the user loses 3 lives the game is over.
Initial screen:
Appearance during a game:
Game Over screen:
