I think the game play could use a few tweaks. The cannon needs to prioritise its target. im losing levels because bugs carrying document make it to the middle tier and my gun refuses to shoot them. Instead it just targets the nearest bug. also, It took a LONG time for me to clear level 7. seems like there is a spike in the difficulty at some points. I have had to go and replay levels a few times to find more letters to make specials with before i can continue...
This wouldnt be so bad if they did some resource balancing... A lot of the time I either build defences, but dont have enough energy, or waste time building solar stations and energy storage, but have no way to protect them... I also dont get the fact that, despite it being a "build something then defend something" game, the building part is so frantic because you get a set of enemys IMMEDIATELY at the start of a level before you have chance to do anything...
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 "The Space Game: Missions"){kind=icon}