Survived for an hour and 27mil points on the first try. It seems like if you're going to include a Survival mode, that it would get harder as time goes along... it's simply boring with full upgrades.
Good game until the sudden difficulty change on the final level (no problem with full upgrades, need that for the badge anyway).
I would really enjoy being able to pick target priority for the NPCs... so many refugees killed by the sniper X_X
After maxing out the hero, attempting the boss a couple of times, and reading some comments, I have to agree that it goes from "hit-and-run" to "grind until max everything" almost instantly... some of the boss levels took me 2 or 3 tries, but the final boss... just forget it.
The 30 point completion badge just isn't worth it. What a disappointment from a pretty nice-looking game.
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That is because it's for using spells and you have no spells equipped