Here is the full list of all 31 Save the Ninja Clan trophies - there are 14 bronze, 10 silver, 6 gold and 1 platinum.
Good job! Completed all tasks!
Beat level 4 with controls reversed.
Complete 10 secrets.
Get a knife modification.
Level 19, crash the game.
Find and complete the secret ending.
Play Pong in the game.
Level 29, play as a scroll.
Level 25, ride a cloud.
Level 9, see a smiley face.
Beat 10 levels without dying.
Beat 5 levels without dying.
Fall for it on level two.
Beat the third boss.
Complete all the levels.
Kill yourself with your own weapon.
Beat a level with an A+ time.
Beat the second boss.
Complete one secret.
Attempt a level 25 times.
Beat half the levels.
Collect 15 Collectables.
Explode 50 times
Die 100 times.
Kill 50 enemies.
Level 11, go to "prison".
Beat the first boss.
Die 50 times.
Kill 25 enemies.
Attempt a level 10 times.
Beat the first level