Awesome, thanks! Yeah, I knew this would be one of many Space Invaders clones out there, but I'm new at this. We all have to start somewhere, and this is part of my portfolio-building. I hope to have a career in game dev, and this is the first step! Thanks for the feedback! :D
Edit: Also, my next game will be more unique than this. I have a game that I started for a Ludum Dare last year, but didn't finish it. It's something I came up with on my own using the theme, and not a clone of anything. Stay tuned for that! :D