No missable achievements (plus 48 unknown)
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Completed Prologue - The Prophecy
Completed Level 1 - Bricksburg Construction
Completed Level 2 - Escape From Bricksburg
Completed Level 3 - Flatbush Gulch
Completed Level 4 - Flatbush Rooftops
Completed an Instruction Build without losing any studs
Completed Level 5 - Escape From Flatbush
Attempted a Master Build-It with a Non-Master Builder
Completed Level 6 - Welcome to Cloud Cuckoo Land
Completed Level 7 - Attack on Cloud Cuckoo Land
Completed Level 8 - Escape from Cloud Cuckoo Land
Defeated 20 Enemies as Rage Unikitty
Completed Level 9 - The Depths
Completed Level 10 - Infiltrate The Octan Tower
Completed all Instruction Builds in Story Mode
Completed Level 11 - Put The Thing On The Thing
Completed Level 12 - Broadcast News
Played as Superman and Green Lantern
Completed Level 13 - Back From Reality
Completed Level 14 - Bricksburg Under Attack
Completed Level 15 - The Final Showdown
Collected all studs in a hacking mini-game
Destroyed 50 Enemies as Metal Beard
Customised your character
Used Lord Business' Legs Machine
Made a Fire
Shot Emmet with Robo Skeleton
Played as Abraham Lincoln and Lady Liberty
Purchased All Master Builders
Defeated 30 Enemies as Emmet Cowboy
Purchased All Characters
Switched from Vitruvius to Ghost Vitruvius
Kragelized 10 people with the Kragle Gun
Completed all Master Builds in Server Room as Benny
Switched from Good Cop (Scribble Face) to Bad Cop
Smashed a chair as Bad Cop
Earned 1,000,000,000 studs
Collected all of the Red Bricks (Single Player)
Defeated 20 Enemies As Sheriff Not-A-Robot
Scored 21 awesome dance moves in the Construction Site dance mini game
Achieved The Special in every level (Single Player)
Found and destroyed the Invisible Jet
Scored 21 awesome dance moves in the Kragelizer dance mini game
Collected all pairs of Pants (Single Player)
Collected all Golden Manuals
Achieved 100% Completion
Used the Kragle Gun to shoot Ma and Pa Bad Cop in the Relic Room
Completed all Golden Instruction Builds