I'm not sure if this is supposed to happen but when I play legend mode it skips straight to Feng Xiu. All I had to do was beat him and the dragon master to complete legend mode. However, it won't give me the achievements for beating the ninjas nor the one for completing legend mode without dying.
Finishes game last night. New badges are added. "If you beat the game prior to badges being added, you'll need to start over and beat it again to have the badge awarded."
Couple of bugs. The load bar often freezes and I am unsure if the game is actually loading in the background. Spacebar doesn't work to pause the game for me. Trial rooms (blue doors) freeze when I finish the trial.
Build only prawn drones until the enemies have 3 armor. Then build only hulk drones. With fully upgraded drones and some money upgrades, that's all you need to win the game.
For those of you who are completionists and can't get 50 hit streak, go to level 12 with the police car. Don't mind hitting a few blue cars at the beginning, just be sure to collect a little bit of boost. Also be sure to collect the first stealth powerup. After, just hold down boost and hit as many red and yellow as you can. If you stay in the middle of the road when the stealth runs out, you should be right in front of a rampage power up. Pick that up, get a lot of cars again. Stay in the middle of the road. Get stealth power up. Hit cars. Middle of road. Rampage. You get the idea.
Protip: hovering over your cash allows you see your expenses and earnings per day. Do a quick calculation make sure your earnings is at least somewhat close to the next level of employee salaries before you upgrade. Also, your zombie population is what buys the products that you sell. The higher your population, the higher you salary.
I had a warrior for the divide challenge. It was the last thing I had to do for the hard badge. I placed seven linked shock towers right at the entrance and had two of each utility tower powering them. I filled the other tiles with their respective units but they didn't do much. I played with +30 waves, +50% hp, and double enemies. Final damage: 437,975. So, I know I built a lot and it requires it to be late in the game, but if you can do about 75% of what I did, mathematically you can get about 250k damage.