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