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