Great
Very original concept, I admit guilt when I was not optimistic with a game called "Vector Boom". I merely assumed it was a feeble attempt at a retro game. But it was very original and required a significant amount of concentration to aim and fire effectively and for maximum effect. The upgrades were a nice touch, and for future versions of this game, maybe a few more weapons, like a scattershot weapon where you click and drag to control the spread or somethinglike that.