Here is the full list of all 30 BattleBlock Theater achievements.
Get a letter grade in every level (except Encores) in insane co-op story mode.
Free all the prisoners in the Gift Shop by unlocking or trading.
Be on the winning team in one arena match of every mode.
Download and host a game of user-created levels.
Be on the winning team in 100 arena matches.
Complete 10 user-created levels in a single Featured Story playlist.
Get a letter grade in every level (except Encores) in insane solo story mode.
Use each weapon successfully.
Get a letter grade in every level (except Encores) in Normal Co-op Story Mode.
Successfully use every melee attack move.
Collect 10 Golden Hats.
Complete all the Encores in any mode.
Play with the Behemoth or someone with this achievement in an online game.
Collect all the prisoners of one head shape.
Get a letter grade in every level (except Encores) in Normal Solo Story Mode.
Kill your teammate 50 times.
Get 100 kills.
Complete an encore level in Story Mode.
Get a letter grade in all eight finales in any mode.
Collect all the weapons in the Gift Shop by unlocking or trading.
Die enough times and we give you a prize.
Free 50 prisoners in the Gift Shop.
Make a trade with someone.
Complete the first four finales in any mode.
Get eaten alive.
Get an A++ in 10 levels.
Find a secret level.
Free a fellow prisoner.
Get yourself a cool new weapon.
Complete the story's opening sequence in any mode.