Was pretty good for a while. level20 felt imposible.
Increasingly tough enemies was a nice twist on common concept. I found the music annoying and the controls finicky though. Would be better with greater range of control, ie making the max power twice the distance from the end of the arrow to allow a greater precision.
Nice idea but way too difficult and frustrating, for me at least.
Taking down enemies before they destroy my tank was fun at the beginning, but in later levels I had to aim super-quickly and accurately to hit them, and to hit several times to kill; their shots often clashed with mine, and my grenades would blast each other away so I had to wait between shots. In the meantime, the enemy always hits and I've won several levels on my last shot thanks mostly to luck. The limited ammo for each weapon, and the need to switch between them to do something useful, also isn't suitable when I need to shoot so quickly.
If enemies (at least weaker ones) were killed by one shot, I think this game could be much more fun. Also, more health and ammo... Perhaps via upgrades to be achieved during the game, maybe also infinite ammo for the basic gun.
it was really just another pysics game :/