Story Achievements:
*Note: Story achievements can all be obtained by playing and completing the level in story mode*
Cover Your Butt! – 20G
Completed Prologue – The prophecy
Let's Get Craaazzzyyyy – 20G
Completed level 1 – Bricksburg construction
Darn Darn Darn Darny Darn! – 20G
Completed level 2 – Escape from Bricksburg
Are You A DJ? – 20G
Completed level 3 – Flatbush Gulch
Freeze, Turkeys! – 20G
Completed level 4 – Flatbush rooftops
Rest In Pieces – 20G
Completed level 5 – Escape from Flatbush
No Frowny Faces – 20G
Completed level 6 – Welcome to Cloud Cuckoo Land
Every Man For Himself! – 20G
Completed Level 7 – Attack on Cloud Cuckoo Land
You Can't Build 'Em All At Once – 20G
Completed Level 8 – Escape from Cloud Cuckoo Land
Why Are My Pants Cold And Wet? – 20G
Completed Level 9 – The Depths
This Bedoubled Land Couch – 20G
Completed Level 10 – Infiltrate The Octan Tower
See You Later Alligator – 20G
Completed Level 11 – Put The Thing On The Thing
Found Your Pants, Series Is Over – 20G
Completed Level 12 – Broadcast News
I Am A Master Builder! – 20G
Completed Level 13 – Back From Reality
Release Every Micro Manager – 20G
Completed Level 14 – Bricksburg Under Attack
You Can Still Change Everything – 20G
Completed Level 15 – The Final Showdown
Always Read The Instructions! – 30G
Completed all Instruction Builds in Story Mode
This will be unlocked once you have completed all of the story instruction builds during the main story.
Collectible Achievements:
Build Things Only You Can Build – 30G
Collected all Golden Manuals
Collect all of the Minikits in the story levels during Free Play. See Collectibles Guide.
Everything Is Awesome! – 100G
Achieved 100% Completion
Complete all 15 story levels.
Collect all 70 Gold Bricks (see Collectibles Guide and Story Walkthrough). 60 are in the story levels (one for completing a level, one for collecting the pants, one for getting The Special, and one for collecting all five Minikits, in each of the 15 levels). 10 are in the Bonus Room, which is only fully available after beating the story levels.
Collect all 20 Red Bricks (see Collectibles Guide).
Honey, Where Are My Pants? – 30G
Collected all pairs of Pants (Single Player)
See Story Walkthough.
Including, But Not Limited To – 20G
Purchased All Master Builders
Puchase all characters who are not robots or construction workers.
Midas Touch – 20G
Completed all Golden Instruction Builds
See Story Walkthough to collect all the Minikits. Once collected, they can be built in the Bonus Room.
The Special People In Your Life – 40G
Purchased All Characters
Self explanatory.
Welcome To Bricksburg – 30G
Collected all of the Red Bricks (Single Player)
See Collectibles Guide.
You Are The Special – 30G
Achieved The Special in every level (Single Player)
Collect enough studs in each level to unlock The Special. See Story Walkthough to see stud requirements for each level.
Character Specific Achievements:
A House Divided – 5G
Played as Abraham Lincoln and Lady Liberty
Both are available for purchase from level 9. Swap to them.
Ah! The Kragle! – 20G
Kragelized 10 people with the Kragle Gun
After level 15, Lord Business is available for purchase (1 000 000 studs). Swap to him and shoot 10 people. If this achievement does not pop for you, shoot 10 of your teammates.
Ayayaya! – 5G
Defeated 20 Enemies As Sheriff Not-A-Robot
Credit to Iv Samurai vI for this solution.
http://www.trueachievements.com/a184082/ayayaya-achievement.htm?showguides=1
Purchase Sheriff Not-A-Robot once he has unlocked in story progression. Then enter Level 4 – Flatbush Rooftops (entrance near hot tub) in free play with Sheriff Not-A-Robot and play through until the three ladder section with infinitely spawning enemies. Kill 20 to unlock this achievement.
END OF THE LINE! – 10G
Shot Emmet with Robo Skeleton
Near the end of Level 11 in story mode, Benny is required to hack a hack point to take control of a Robo Skeleton. Once in control, shoot Emmet to unlock this achievement.
Alternatively, purchase Robo Skeleton once he unlocks, and shoot Emmet instead.
Glues Your Daddy? – 10G
Used the Kragle Gun to shoot Ma and Pa Bad Cop in the Relic Room
Complete Level 15 to unlock and purchase Lord Business. Freeplay Level 12 with Lord Business and use the Kragle Gun on Ma and Pa Bad Cop when you Relic Room.
Grrrg! – 10G
Smashed a chair as Bad Cop
When Bad Cop unlocks, enter Level 2 in freeplay with Bad Cop. As soon as you enter, move to the chair with an interact point in front of it and use it to get this achievement.
I Super Hate You Right Now – 10G
Played as Superman and Green Lantern
After Level 14, both of these characters are available to get. Swap to them to unlock this achievement.
It's Just Business – 5G
Used Lord Business' Legs Machine
After unlocking Lord Business (Level 15), purchase him and use a legs machine to unlock this achievement. The easiest one to find is in Bricksburg in the fountain area, just to the right of the entrance of the construction area.
Pow Pow! Bullet Bullet! Gun! – 20G
Defeated 30 Enemies as Emmet Cowboy
Enter Level 4 – Flatbush Rooftops (entrance near hot tub) in free play with Emmet Cowboy and play through until the three ladder section with infinitely spawning enemies. Kill 30 to unlock this achievement.
Really Hard? This Be Impossible! – 20G
Destroyed 50 Enemies as Metal Beard
Note: To get this achievement, you will need to use full size Metal Beard, not Mini Figure Metal Beard.
In Level 11, once you reach the Octan Tower, follow the story until you have to defeat 20 robots. After defeating them, enemies will constantly respawn out of the elevator until you destroy the silver blocks and leave. Use this opportunity to get the 50 kills. If you do not get this first time, just replay the level.
SPACESHIP SPACESHIP! – 10G
Completed all Master Builds in Server Room as Benny
At the end of Level 12, in the server room where Metal Beard is needed to break the spaceship part crates, use Benny to construct all three Master Builds on the spaceship. The game keeps track of how many you have done as Benny, so another run though may not need him to do all three.
The Opposite Of Happiness – 20G
Defeated 20 Enemies as Rage Unikitty
This achievement is fairly easy to obtain during story mode (hold B while using Unikitty to enrage).
Otherwise, enter Level 4 – Flatbush Rooftops (entrance near hot tub) in free play with Unikitty and play through until the three ladder section with infinitely spawning enemies. Kill 20 to unlock this achievement.
The Prophecy, I Made It Up – 10G
Switched from Vitruvius to Ghost Vitruvius
Once Ghost Vitruvius has unlocked, purchase him, and swap from Vitruvius to Ghost Vitruvius to unlock this achievement.
Too Bad! – 10G
Switched from Good Cop (Scribble Face) to Bad Cop
Once Bad Cop has unlocked, purchase Good Cop (Scribble Face), and swap from Good Cop (Scribble Face) to Bad Cop to unlock this achievement.
Minigame Achievements:
First Try! – 20G
Completed an Instruction Build without losing any studs
The easiest way to get this is to do the instruction build in Level 1. It only has one thing to pick. The Round Tree.
I Am The Computer – 20G
Collected all studs in a hacking mini-game
During a hack point, collect all of the studs without being hit by the enemy (else it will reset), and a purple stud will appear somewhere. Collect this and complete the hack to unlock this achievement. If you are having difficulty, unlock and activate the Fast Hack Red Brick (see Collectibles).
I Could Sing This Song For Hours – 20G
Scored 21 awesome dance moves in the Construction Site dance mini game
During the dance sequence in Level 1, score perfect Awesomes to unlock this achievement. The best way to score an awesome is to press the button after it reaches the circle (it sits there for a bit). Pressing early will earn you a Cool or worse, which will fail this attempt. If you fail, you can retry by moving to the front of the dance floor and pressing B when the prompt appears.
No Way, This Is My Jam – 20G
Scored 21 awesome dance moves in the Kragelizer dance mini game
During the dance sequence in Level 11, score perfect Awesomes to unlock this achievement. The best way to score an awesome is to press the button after it reaches the circle (it sits there for a bit). Pressing early will earn you a Cool or worse, which will fail this attempt. If you fail, you can retry by moving to the front of the dance floor and pressing B when the prompt appears.
Misc Achievements:
Building Bad – 10G
Attempted a Master Build-It with a Non-Master Builder
At any master build point, attempt the build with a robot or construction worker character (besides Master Builder Emmet) to unlock this achievement.
Business Business Business – 50G
Earned 1,000,000,000 studs
Collect studs until have collected 1 000 000. This is made much much easier by obtaining and turning on the Stud Multipler Red Bricks (see Collectibles section) to give you x3840 for every stud.
Firestarter – 20G
Made a Fire
In the Old West hub area, to the left of the bank is a building with a master build spot in front of it. Use a master build character to create a set of stairs. Go up the stairs to the second floor, and push the crate out of the window. Use a master build character to create the fire panel. Swap to Kabob Bob (you get him for cheap and quite early) and aim at the fire panel by holding the X button and fire to set it off.
To The Invisible Jet! – 20G
Found and destroyed the Invisible Jet
Enter Level 6 – Welcome To Cloud Cuckoo Land in the Old West, which is forward and right from the area portal. Once in the level, head to the right, and you will see some rainbow blocks, which you can destroy and rebuild with Unikitty into a catapult. Launch yourself and when you land, look to the right to see sparkles. This is the invisible jet. Smash away to unlock this achievement.
Wear Clothes… Check! – 5G
Customized your character
Enter the hub of Cloud Cuckoo land, walk straight ahead through the central doorway to reach the dome. In there is a central panel which you can interact with which will allow you to change the clothes on the custom characters. Change some clothes to unlock this achievement.