Tasks
Description Rewards
Build 2 Dojoes
+5 
+250
Upgrade Palace to Level 2
+15
+10
Rescue the Princess from the Evil Shogun
+25
+25
Train 75 Assassins
+10
+1,000
Upgrade 1 Kunai Tower to Level 2
+15
+800
Earn 25 Stars in single player battles
+20
+5
Build 30 Walls
+10
+1,500
Upgrade 1 Goldsmith to Level 4
+20
+500
Total Task Rewards
120
40
1,750
2,300
Completion Grand Rewards
Tips
When Training Troops, each one adds to the counter. If it dies, the counter does not go backward. So, you do not have to train them all at once.
The Princess in locked in a Prison Tower on the 16th scenario of the Single Player Battles. You must destroy this Tower and gain at least 1 Star in the battle to rescue the Princess.
There are a total of 16 Single Player Battles with 3 Stars each to earn. This means there are a total of 48 Stars that can be gained, so you do not have to earn 3 Stars in every scenario, just most of them. If you discount completing each of the scenarios with at least 1 Star, you must only gain 9 secondary or tertiary stars.