Devinshkiのコメント

a hint for ninjas, at the beginning of the level, place an of the map and do not upgrade it. place your normal defences afterwards. rank up so others can see.

quick hint, speed is very inportant. evey 2 points o speed = 1 point of every kind of piercing, and thus, 300 speed = 150 point of piercing etc.

What is the secret weapon and how do i get it