There are 51 Trophies that can be collected.

Bronze

Apprentice Ninja    
Beat the game on Easy Difficulty.    

Full-fledged Ninja    
Beat the game on Normal difficulty.

The First Step    
Complete the first mission successfully.    

Ninja Initiation    
Level up for the first time.    

Chimatsuri Sappo    
Perform a Chimatsuri Sappo successfully.

Alchemical Aspirations    
Use alchemy to create an original ninja tool.

Sticky Fingers    
Did you steal something?    

Shuriken Sharpshooter    
Prove the strength of the shuriken.    

Recovery Elixir Popper    
Coming back from the brink of death is part of being a ninja.    

Grapple Hook King    
Throw that grapple hook!!    

Gears and Springs    
I love wind-up toys!!    

Uzumbi Artisan    
It’s their fault for stepping on it.    

Ninja Tool Craftsman    
Become a connoisseur of alchemical ninja tools.    

Person of Power    
You gave it your all to wipe the enemy out.

Covert Ninja    
A true ninja always goes unseen.    

The Silencer    
Silence every witness to your deeds.    

Hard Worker     
Complete all the tutorials.

Salmon, Salmon, and More Salmon    
You really like salmon, don’t you?

Bandit Buster     
Leave no bandit alive.

Familiar Faces    
You met some familiar ninja from bygone days.

Silver

First Class Ninja    
Beat the game on Hard difficulty.

Assassin’s Pedigree    
Perform all the special Chimatsuri Sappo successfully.

Alchemical Genius    
Create the symbol of an Alchemical Genius.

Saint     
A ninja loves all without bias.    

Moneymaker    
A true ninja also knows how to save.

Onigami    
Become a master of using Chimatsuri Sappo.    

Gaga for Greens    
Collect every type of weed.    

Mushroom Village    
Collect every type of mushroom.    

Gecko Hunter    
Collect every type of gecko.    

Jack-of-All-Trades    
Versatility is part of being a ninja.

Ninja Hunter     
Every ninja must die.

King of the Beasts    
Encounter a bear like none other.

Platinum

Shinobido Mastery    
Acquire every trophy.

18 Secret

http://www.ps3trophies.org/game/shinobido-2-revenge-of-zen/trophies/