There are 13 Trophies that can be earned in this title.

Bronze

Traditional
Complete the game using any character.

The Traitor
Defeat any boss by playing one of his own minions.

Deer Trainer
Navigate the Abandoned Mill without hitting any obstacles.

Maximum Firepower
Using a catapult, fling a knight with maximum power.

Animal Handler
Collect all the animal orbs.

Melee is Best
Defeat any boss without using magic.

Treasure Hunter
Find and dig up 10 buried items.

Medic
In a 4 player game, resuscitate each of your fallen comrades at least once.

Social Networker
Reach 20 hits in a single Volleyball rally.

Silver

Kay Eye Ess Ess
Collect all 4 Princesses' kisses in a multiplayer game.

Conscientious Objector
Complete the Home Castle through the Barbarian Boss areas without attacking any foes.

Arena Master
Win 40 Ranked Arena matches

Gold

You Are Insane
Complete Insane mode and become the ultimate Castle Crasher

http://www.ps3trophies.org/game/castle-crashers/trophies/