Fix the cannons!!!

Ive had this game a long while now and it would be quite fun but for the fact that the cannons just stop working. Also please stop saying this is a strategy game. It most certainly is not. When an enemy simply waltzes past all your defenses without so much as a scratch, strategy goes out the window. Its as if the developers decided to end the game by spawning an invincible enemy because they couldnt be bothered allow you to keep scaling up the power of your defenses. Still would be fun for an occasional diversion if the cannons didnt suddenly stop firing letting enemies walk thre unharmed.

Zed Essex about Zombie Attack! Second Wave XL, v2.2.1