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