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.
Use each weapon successfully.
Get a letter grade in every level (except Encores) in Normal Solo Story Mode.
Successfully use every melee attack move.
Collect 10 Golden Hats.
Collect all the prisoners of one head shape.
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.
Make a trade with someone.
Die enough times and we give you a prize.
Get 100 kills.
Collect all the weapons in the Gift Shop by unlocking or trading.
Free 50 prisoners in the Gift Shop.
Complete the first four finales in any mode.
Kill your teammate 50 times.
Get eaten alive.
Get an A++ in 10 levels.
Find a secret level.
Get yourself a cool new weapon.
Free a fellow prisoner.
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.
Complete all the Encores 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.
Play with the Behemoth or someone with this achievement in an online game.
Play and rate 10 user-created levels.
Download and host a game of user-created levels.