Teleported yourself using a smokebomb

Hid from your enemies using the environment

Stood against a more powerful enemy

Used the height difference to be unseen

Alerted an enemy about your presence

You shouldn't sound more alarms

Completed your training

Assassinated your first target successfully

Assassinated your second target successfully

Collected the item from the first secret stage

Collected the item from the second secret stage

Collected the item from the third secret stage

Collected the item from the fourth secret stage

Collected the item from the fifth secret stage

Collected the item from the sixth secret stagee

Collected the item from the seventh secret stage

Collected the item from the eigth secret stage

Collected the item from the ninth secret stage

Collected the item from the tenth secret stage

Assassinated the shogun successfully

Burned the castle down

Completed 5 levels without losing any ninjas

Completed the collection

Entered a secret stage for the first time