Really cool ! i like the fact that this is not really a shmup but more of a free range movement game and that you can control your shields manually to save power for when really needed, also real nice that this has multiplayer support :o
The only issue i have are the movement controls, don't get me wrong they're not bad, i just think that with the type of movement you made i feel it would be better to be able to aim and move separately twin stick style for controller and with the mouse on keyboard.
Other than that it was fun raiding these cargo ships for some spaceloot :p
Good job to the team !