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