This is such a cool concept! I am horrendously terrible at it, but it was still a fun game and I appreciate the effort you put into it.
The only thing I wasn't sure about -- at the start, it says you should contact the other planets, but then immediately you switch to having to destroy them and I wasn't sure what made that change happen.
The music makes this feel almost calming, even when you're in the middle of a shoot-off.
Overall, very cool submission. :)