Full list of all 30 BattleBlock Theater achievements worth 400 gamerscore. It takes around 40-50 hours to unlock all of the achievements on Xbox 360.
Kill your teammate 50 times.
Collect all the prisoners of one head shape.
Free 50 prisoners in the Gift Shop.
Free a fellow prisoner.
Die enough times and we give you a prize.
Complete the first four finales in any mode.
Get eaten alive.
Collect all the weapons in the Gift Shop by unlocking or trading.
Make a trade with someone.
Get yourself a cool new weapon.
Complete the story's opening sequence in any mode.
Get an A++ in 10 levels.
Find a secret level.
Play with the Behemoth or someone with this achievement in an online game.
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.
Collect 10 Golden Hats.
Get a letter grade in all eight finales in any mode.
Be on the winning team in 100 arena matches.
Be on the winning team in one arena match of every mode.
Free all the prisoners in the Gift Shop by unlocking or trading.
Trade online with ten different players.
Get 100 kills.
Successfully use every melee attack move.
Use each weapon successfully.
Play and rate 10 user-created levels.
Download and host a game of user-created levels.