the true challenge

[corentinxD]

in the Tower Defense someone could explain me how to do the true challenge

 

[Snodia]

The way that many have figured out how to do it is, to play with friends. Have the friends place a lot of towers and the more expensive towers. Then, when there's enough time to sell all the towers and get the giant sent, your friends will leave and you can then sell the towers for the coins.

 

[Qin Shihuangdi]

If you manage to be with 1 other person that's the best way to do it. They should only place three towers at the start so the zombies get drained to one hit.