Whoa, this was really fun! I liked the simplicity, it was challenging but very enjoyable. The geometric shapes, the sound, and the whole visual experience really put me in the mind of playing Asteroids on Atari back when I was kid...addictive and fun! The enclosing red boxes and power-ups were a nice touch that gave it some more originality.
For some reason I couldn't get the bomb to deploy with my right mouse button (I'm using my laptop's touch pad...though I imagine I'd probably enjoy it even more if I got a gamepad).
Fantastic work!