Full list of all 12 Castle Crashers achievements worth 200 gamerscore. It takes around 15-20 hours to unlock all of the achievements on Xbox 360.
Defeat any boss without using any magic.
Collect all the animals.
Collect all 4 princesses' kisses in a multiplayer game.
Find and dig up ten buried items.
Navigate the Abandoned Mill without hitting any obstacles.
Complete the Home Castle through Barbarian Boss areas without attacking any foes.
Defeat any boss by playing one of his own minions.
Using a catapult, fling a knight with maximum power.
Complete the game using any character.
Win 20 All You Can Quaff Ranked Matches.
In a 4 player game, resuscitate each of your fallen comrades at least once.
Win 40 Arena Ranked Matches.