1. The opening is as follows: two third-order arrow towers, two junior mage towers, one second-order mage tower and two warrior towers guard the finish line;

3. Upgrade the leftmost watchtower to sniper watchtower, and upgrade the shotgun skill to level 1;

4.

Upgrade the shotgun skills of sniper towers to level 2, then upgrade the two warrior towers to level 2, and then upgrade the shotgun skills to full level!

5. upgrade all warrior towers to level 3, and then upgrade the mage tower in the middle road to level 3!

6. upgrade another arrow tower to poison bow tower.