I beat it my first try. All that says is that it is too much like other arena shooters. Also, the boss was pathetic. As a stand-alone game, 4/5. Compared to other shooters like it, 2/5.
The whole thing is just too easy. Any moron can figure out the broken technique of tank creation: Pile guns on top of each other.Not only do enemies have too much health (making the game not so much challenging as tedious), they give too much.