Here is the full list of all 13 Castle Crashers trophies - there are 9 bronze, 3 silver and 1 gold.
Collect all 4 princesses' kisses in a multiplayer game.
Complete the game using any character.
Defeat any boss by playing one of his own minions.
Navigate the Abandoned Mill without hitting any obstacles.
Complete the Home Castle through the Barbarian Boss areas without attacking any foes.
Using a catapult, fling a knight with maximum power.
Collect all the animal orbs.
Win 40 Arena Ranked Matches.
Complete Insane mode and become the ultimate Castle Crasher.
Defeat any boss without using any magic.
Find and dig up 10 buried items.
In a 4 player game, resuscitate each of your fallen comrades at least once.
Reach 20 hits in a single Volleyball rally.