A good part of what makes the impossible badge such an horrible odyssey is the way the towers decide their target. Seriously, almost all of the enemies that pass the defenses are ghosts that suddenly became temporarily untargetable or enemies that were almost at the end but for some reason the towers don't attack. To improve the system I would recommend letting the targeting decision to the player (putting some option of the kind of enemy you want to attack, less health, closer to the exit, etc) or putting the option of a pointer to select the enemy you want to focus on. Maybe pressing on the exact enemy with the mouse? The other thing is that the tower don't stop attacking an enemy until is dead and that creates a lot of problems when other enemy is closer to th goal and notower is shooting it because they are busy killing other one.
After a long time I finally got the hard badge. It was pretty hard and I had a lot of luck during my game. The best of all, I won thanks to the constitution, made exactly the same day the zombies destroyed everything and killed everyone. But hey! Now there is a constitution and that is enough right?
sincerelly it is not that hard to win, even without cheats. The only things that matters is ensuring to dodge the storm of bullets. Attacking is secundary, just attack with charge and almost always you will be hitting something.
Its weird, in this game you have to wait 20 minutes when you go to a good zone, but you go to the zone of the side and is longer the time, I didnt know you used 10 minutes for crossing a road.
I saw a guy who said, I had to restart browser after trowing it backwards, a lot of other guys saying it crash, dont trhow it backwards, and guess what? I THROWED IT BACKWARDS!!!!
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I never noticed that until today! I can`t believe it was broken for so long! I fixed it. Thanks!