I had a borderline religious experience with this game. Its mechanics and control scheme feel so natural and intuitive that I'd sooner believe this game was brought into existence by the universe itself, not made by a human for a game jam. When the screen flooded with UFOs peppering my robot with their hateful bullets, I felt a deep, wistful sadness that I usually only feel at the end of The Iron Giant. 11/10
Also if you haven't heard of it, you should check out Libble Rabble: