Good game so far.
The weapon on the power ship becomes completely unplayable at high upgrade levels. You can kill one enemy every 3 seconds which does not keep up with the waves. All three of the shots hit one ship and there is no increased damage (should be 3x) but they all disappear. Also have the enemies die from the shot, not just have the health drain as they stay onscreen too long
 "Sensou 1.5"){kind=icon}
 "Vulcan Siege"){kind=icon}
 "Desktop Tower Defense 1.5"){kind=icon}