I feel like this could be a truly wonderful game, but I don't know about the fact that it requires you to fail a level in order to grind in order to pass a level.
I feel like this should be a "Badge of the Week" instead of day because it's going to take me a long time to get this one. I'm not very good at tower defense games, so I don't have this one already done.
A tutorial would be really helpful. It says there're in-game instructions, but there aren't any. Just "build this" with no indication what to use, or what would be most beneficial.
I like the game, but fighting against the cities is so random. A few times they get me for 10 or 15 points per hit and the next is 46 and knocks me dead. If it were a little more consistent we could judge whether to try one more shot or surrender. Otherwise, I like the game a lot.
I love this game, but I'd like to know how we get more letters. It seems inconsistent and a little random. If there's a formula, it'd be nice to know it so we can get more letters to work with. Otherwise, wonderful game!
I like the Free Play option, but I'd like to be able to control the bar so that we can actually appreciate the creations. A pause button would be nice, or speed toggle. Otherwise, besides the kinks already mentioned, it's a great game.