Fun! Add some health bars, and limit the amount of bullets shot. In its current state the higher cps you have the easier it is.
Why do you need to use a ship with practically-exposed vital systems to protect against falling cubes? Because someone behind this thing did fuck-all for half of his deadline. At least the most useful systems are protected by less ones... Be careful!
Arrow keys = Move
Z = Shoot
Shift = Go slow
Shift + Z = Repair