All Around Joe
Be on the winning team in one arena match of every mode.
Armed and Dangerous
Collect all the weapons in the Gift Shop by unlocking or trading.
Get yourself a cool new weapon.
Complete the story's opening sequence in any mode.
Play with the Behemoth or someone with this achievement in an online game.
Get a letter grade in every level (except Encores) in Normal Co-op Story Mode.
Complete all the Encores in any mode.
Get 100 kills.
First Time Trader
Make a trade with someone.
Free all the prisoners in the Gift Shop by unlocking or trading.
Trade online with ten different players.
Get a letter grade in all eight finales in any mode.
Insane Co-op Star
Get a letter grade in every level (except Encores) in insane co-op story mode.
Insane Solo Star
Get a letter grade in every level (except Encores) in insane solo story mode.
Free 50 prisoners in the Gift Shop.
Successfully use every melee attack move.
Free a fellow prisoner.
Complete the first four finales in any mode.
Secret Hat Hunter
Collect 10 Golden Hats.
Collect all the prisoners of one head shape.
Get a letter grade in every level (except Encores) in Normal Solo Story Mode.
Be on the winning team in 100 arena matches.
Play and rate 10 user-created levels.
Download and host a game of user-created levels.
Get an A++ in 10 levels.
Use each weapon successfully.
Die enough times and we give you a prize.
Get eaten alive.
Find a secret level.
Kill your teammate 50 times.