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.
Achievements they've won
Achievements they've not won
Collect all 4 princesses' kisses in a multiplayer game.
Complete the Home Castle through Barbarian Boss areas without attacking any foes.
Defeat any boss by playing one of his own minions.
Collect all the animals.
Win 20 All You Can Quaff Ranked Matches.
Using a catapult, fling a knight with maximum power.
Complete the game using any character.
Find and dig up ten buried items.
Navigate the Abandoned Mill without hitting any obstacles.
Win 40 Arena Ranked Matches.
Defeat any boss without using any magic.
In a 4 player game, resuscitate each of your fallen comrades at least once.