Here is the full list of all 30 Masquerade: The Baubles of Doom achievements worth 1,000 gamerscore.
Counter 50 hits
Allow an outhouse to spawn 10 enemies before destroying it
Defeat 10 enemies in a row without getting hit
Finish the game on hard difficulty
Find the hidden Easter Egg island
Get 10 Enemy archers to hit other clown soldiers with their arrows
100% accuracy with the Ballista in Tickle Town
Find and open all 8 treasure chests
Finish the game in a single sitting (Medium difficulty and above)
Finish the game on Medium difficulty
Perform a 35 hit combo
Defeat 100 enemies without using a finisher
Complete every act without triggering any rooster alarms
Achieve 5 stars in every act
Defeat 10 enemies with the hammer throw attack
Knock 15 enemies off a ledge
Unlock the Tier 3 Supermove
Finish off 30 downed enemies
Defeat 100 enemies
Finish the game on Easy difficulty
Complete the Camp Folly obstacle course without respawning
Find all hidden baubles in every act
Complete every act without using a Supermove
Complete Fortress without dying
Defeat Sarge in both battles without breaking his shield
Finish every act without Jester Juice Potions
Listen to Jimmy’s entire eulogy
Destroy every rooster sentry
Witness the return of the captains on every difficulty level
Complete Barry’s Pillar Puzzle without falling