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