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!
Find and complete the secret ending.
Play Pong in the game.
Level 29, play as a scroll.
Level 25, ride a cloud.
Beat 10 levels without dying.
Complete 10 secrets.
Level 9, see a smiley face.
Fall for it on level two.
Beat the third boss.
Complete all the levels.
Level 11, go to "prison".
Get a knife modification.
Beat 5 levels without dying.
Beat level 4 with controls reversed.
Attempt a level 25 times.
Kill 50 enemies.
Kill yourself with your own weapon.
Beat the second boss.
Collect 15 Collectables.
Level 19, crash the game.
Complete one secret.
Beat half the levels.
Die 100 times.
Explode 50 times
Kill 25 enemies.
Beat a level with an A+ time.
Beat the first boss.
Die 50 times.
Attempt a level 10 times.
Beat the first level