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!
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 and pick up every fish, paintbrush and cocktail umbrella on your journey.
Find all of Gerald's secret spots.
Cleaned up N.A.O.M.I's code.
In multiplayer, get gold in any Knitted Knight Trial while carrying another Sackperson.
In multiplayer, start a dance party with your friends.
Pick up, and hold on to, a Boomblebee Hive for 60 seconds.
Complete Highs and Glows... without throwing the Whirltool.
Collect all the stickers in a single World.
Pick up and throw 30 of Vex's minions to their doom.
Stun 30 of Vex's minions.
Earn Gold on the scoreboard in 50 different levels!
Defeated the Bringer of Nightmares at the bottom of the ocean.
Create your own custom Emote in Zom Zom's shop then show the world.
In multiplayer, high five with a friend.
Save a custom-made costume to your Wardrobe.
Ace 30 levels by completing them without dying.
Cleared the Colossal Canopy of its pest problem.
In multiplayer, save your fallen friends from certain doom!
In multiplayer mode, earn 10 Ace level goals.
In multiplayer, snag the most Collectabells in a level 20 times.
Fill your wardrobe with 300 costume pieces.
Over the course of your adventure, collect 3000 points while sliding.
In multiplayer, get the top score on the scoreboard 20 times.
Defeat 30 of Vex's minions from a distance.
Defeat multiple minions simultaneously 10 times.
While in the air, perform four actions before touching the ground.
Collect a full chain of Timed Score Bubbles 30 times.
Achieve all the level goals for 10 different levels.
Faced off against the Master of the Uproar on the Soaring Summit.
Defeat 30 of Vex's minions by bouncing on them.
Earn a Gold rank in any Remix level.
Complete your first Costume.
Earn a Gold rank in any Knitted Knight Trial.
Discover the Trials of the Knitted Knights.
In multiplayer, clobber one of your chums as the champ.
In multiplayer, complete a Teamwork Level.
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.
Simultaneously slap each other.