OH MAN!!! THOSE EFFECTS WERE BEAUTIFUL!
I love cool effects and impacts and try to add them in my games, but man yours were extra incredible. I had to play through twice just to enjoy the glorious feeling!
The game itself is great too! I really enjoyed it. Concept of reverse space invaders was very unique and you implemented it well. Only minor complaint is that it's so short!
Anyways well done and great work on this!!!