king_hsiao's Comments

arena is easy. 2 spike trap and 2 demon portal clear all mobs http://postimg.org/image/bajh830lh/9f36f8ad/

use demon to force monster stay on spike trap

spike trap+demon portal is powerfual. I use this combination to pass Arena and Heros Must Die.

demon portal should be automatically reinforcement. When I have more than 4 demon portal in 1 map. I'm too busy to do other things.

finally pass crumble zone

anybody pass crumble zone? it's realy difficult. I can't pass it.