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