I like the game, but like others have said, I'd like to see more Units or abilities. Also I wish the enemy wasnt also black, because it becomes dificult to tell which units are mine or the enemy. At later levels I hoped to see a boss or something, but it was just more of the same. The upgrade screen at first was very confusing but I understood quickly. Each item has a LOT of upgrades, i think a more expensive upgrade that is more effective would be nice, instead of 1 HP per buy you could do 3 for tripple the price, also you could show how much of the total possible upgrades that you've received. like 23/60, just so we know how high we can go, it helps us be able to plan out our actions more. Besides getting an extra day added, what penelties exist for losing? Fun Game though, I liked playing all the way through. Also, it did lag sometimes.
I really don't understand how some people reason. I would complain if I had spent money and the game I got was nothing good. But why the hell are you guys complaining for a game you didn't spend a dime for? You may definitely not agree with the people that actually think this game is worthy to spend money for, but you can't force the developers to not put buyable content in it. They are even being nice enough to provide the almost totality of the content for free. How could the coop map be sometimes won by non-NG couples if they didn't have access to anything in this game as you are stating.
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