Space Invaders 0.0.1

Launch of my Space Invaders Variant made for the 20 Game Challenge.

I added a Help Screen, Win and Lose Screens, a BG Song, and sound effects for the Launch.

Videos: https://www.youtube.com/playlist?list=PL-Uv2tBrQui98r57hdDWZ5Pe0LTVxIDby

Please provide feedback and tips appreciated