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