You shouldn't sound more alarms

Alert an enemy about your presence

Stand against a more powerful enemy

Complete 5 levels without losing any ninjas

Complete the hidden jigsaw

Complete your training

Assassinate your first target successfully

Use the height difference to be unseen

Assassinate your second target successfully

Assassinate the shogun successfully

Burn the castle down

Complete the collection

Collect the item from the first secret stage

Collect the item from the tenth secret stage

Collect the item from the second secret stage

Collect the item from the third secret stage

Collect the item from the fourth secret stage

Collect the item from the fifth secret stage

Collect the item from sixth first secret stage

Collect the item from seventh first secret stage

Collect the item from the eighth secret stage

Collect the item from the ninth secret stage

Hide from your enemies using the environment

Teleport yourself using a smokebomb