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