Here is the full list of all 46 Sackboy: A Big Adventure achievements.
Get a Gold on the Knitted Knight’s ultimate trial.
In multiplayer, get gold in any Knitted Knight Trial while carrying another Sackperson.
In multiplayer, save your fallen friends from certain doom!
In multiplayer, clobber one of your chums as the champ.
Simultaneously slap each other.
In multiplayer, snatch an item from the clutches of another player.
Collect all the stickers in a single World.
Show off what you've learned and finish the Wonderplane's final challenge!
Complete Highs and Glows... without throwing the Whirltool.
Pick up, and hold on to, a Boomblebee Hive for 60 seconds.
Defeated Vex, destroyed the Topsy Turver and saved Craftworld!
Triumphed over the vile Vex at the very centre of Craftworld.
Find all of Gerald's secret spots.
Pick up and throw 30 of Vex's minions to their doom.
Find and pick up every fish, paintbrush and cocktail umbrella on your journey.
Cleaned up N.A.O.M.I's code.
Earn Gold on the scoreboard in 50 different levels!
Defeated the Bringer of Nightmares at the bottom of the ocean.
Ace 30 levels by completing them without dying.
Cleared the Colossal Canopy of its pest problem.
Create your own custom Emote in Zom Zom's shop then show the world.
Save a custom-made costume to your Wardrobe.
While in the air, perform four actions before touching the ground.
Over the course of your adventure, collect 3000 points while sliding.
Defeat multiple minions simultaneously 10 times.
Defeat 30 of Vex's minions from a distance.
Stun 30 of Vex's minions.
Defeat 30 of Vex's minions by bouncing on them.
In multiplayer, start a dance party with your friends.
In multiplayer, complete a Teamwork Level.
Faced off against the Master of the Uproar on the Soaring Summit.
Achieve all the level goals for 10 different levels.
Earn a Gold rank in any Remix level.
Collect a full chain of Timed Score Bubbles 30 times.
Complete your first Costume.
Earn a Gold rank in any Knitted Knight Trial.
Discover the Trials of the Knitted Knights.
Pushed back the Uproar for the first time.
Get a golden level badge by completing all the Level Goals for a single level.
Fill your wardrobe with 300 costume pieces.
Even Scarlet didn't get all the achievements, you're truly a Knitted Knight of legend.
In multiplayer, get the top score on the scoreboard 20 times.
In multiplayer, high five with a friend.
In multiplayer, snag the most Collectabells in a level 20 times.
In multiplayer mode, earn 10 Ace level goals.
Team up to take down the Topsy Turver.