In front of level 9 Archer Tower, there are a lot of bombs. To remove them, first deploy some Barbarians on point A in the following picture.
After Bombs are gone, put 15 Barbarians on the point A to take out the Archer Tower.
At the same time, drop 10 Barbarians on each point B to take out Archer Towers.
After Archer Towers are gone, drop a Balloon.
In the following video, Barbarian are upgraded to level 4. Balloon are upgraded to level 3.
In the video, the player drops 2 Barbarians to remove bombs front of level 9 Archer Tower.
After bombs are gone, drop 17 Barbarians in front of the Archer Tower.
To take out other Archer Towers, he put 18 and 13 Barbarians in front of each tower.
After Archer Towers are gone, he drop 3 Balloons. Barbarians were defeated by Cannons. However, Cannons cannot attack aerial unit, Balloon.
This mission is accomplished!
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