Here is the full list of all 54 New Super Lucky's Tale achievements. It takes around 10-12 hours to unlock all of the achievements on Windows.
Purchase all of the costumes from Sky Castle, Veggie Village, Wrestful Retreat, and Hauntingham.
Fall into a tar pit.
Beat Trapped in Paradise without flipping a switch.
Look at every map in Trapped in Paradise.
Take no damage at the end of Three Cannon Salute.
Defeat Lady Meowmalade without getting hit.
Activate all the Cash Registers.
Take a dip in Foxington.
Take no damage in WriggleMania.
Interact with all 5 radios in Foxington.
Complete all PW levels.
Complete all of the levels in Foxington.
Defeat WriggleMania while wearing the Maxi-Mullet.
Take a shower in Foxington.
Complete all Ch1p levels.
Defeat all of the enemies in Top That!
Collect all of the collectibles during the cross ladder section of Step by Step.
Never get caught in a single run through of Under Pressure.
Find all 4 diamonds in A Road to Nowhere.
Burrow 10,000 meters.
Complete all Anna Lyd levels.
Watch the Credits.
Defeat Jinx once and for all!
Collect all Pages in Hauntingham.
Solve the mushroom puzzle in Grave Awakening.
Collect 12,000 Coins.
Defeat Lady Meowmalade in her dance club.
Collect all Pages in Gilly Island.
Defeat General Buttons and Lt. Fluffinstuff in Three Cannon Salute.
Complete Trapped in Paradise.
Rescue the Soggy Boggy Boys' audience.
Collect all Diamonds in Securing the Talent.
Defeat the Yeti in Securing the Talent.
Must... destroy... sandcastles!
Defeat General Buttons and Lt. Fluffinstuff.
Get crushed.
Collect all Pages in Wrestful Retreat.
Have a Buzzkill kill a fellow Buzzkill.
Defeat Tess.
Collect all Pages in Veggie Village.
Collect 5,000 Coins.
Equip a mismatched costume.
Help the Wormal farmer gather his chickens.
Complete a Tess Marble Minigame.
Defeat Master Mittens.
Collect all Pages in Sky Castle.
Finish a Burrow Run level.
Equip your first costume.
Collect 1,500 Coins.
Finish a 2D level.
Complete a Sliding Block Puzzle.
Collect all the LUCKY letters in a single level.
Use a foxhole.
Complete the Prologue.