Nice additon to the Action - Shooter genre
Nice game.
The Controls were ... interesting. At first the classic WASD scheme seems to be superior but after a few battles the "Inverted Control" start to show it´s strength . . . quick short precise movements.
The Upgrade system was ok, maybe one or two more stats like shield strength or speed would be nice, or even some small gadets like secondary weapons or satellites.
oh, and: Change the "speed" of the game down by 10-15%. The precise "Inverted Control" loses some of its advantages, when bullets and enemies fly so fast that it´s virtually impossible to dodge them.
DecKai