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