Complete the first four finales in any mode.

Unlocked: 17 Aug 2014 16:40:53

Collect all the weapons in the Gift Shop by unlocking or trading.

Unlocked: 15 Aug 2014 14:21:11

Free 50 prisoners in the Gift Shop.

Unlocked: 15 Aug 2014 01:22:08

Die enough times and we give you a prize.

Unlocked: 07 Aug 2014 01:27:43

Get 100 kills.

Unlocked: 07 Aug 2014 01:26:57

Kill your teammate 50 times.

Unlocked: 06 Aug 2014 18:19:30

Get eaten alive.

Unlocked: 06 Aug 2014 18:05:34

Successfully use every melee attack move.

Unlocked: 31 Jul 2014 01:36:16

Gather yarn balls and trade them to the cats in the Gift Shop.

Unlocked: 31 Jul 2014 00:28:56

Find a secret level.

Unlocked: 31 Jul 2014 00:14:13

Earn some gems, go to the Gift Shop and free a prisoner.

Unlocked: 30 Jul 2014 23:53:25

In the Gift Shop, go to the Trading Post and trade with another player.

Unlocked: 30 Jul 2014 23:52:03

Complete the story's opening sequence in any mode.

Unlocked: 30 Jul 2014 23:33:39

Play with the Behemoth or someone with this achievement in an online game.

Unlocked: 25 Jul 2014 23:56:04

Get an A++ in 10 levels.

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.

Collect all the prisoners of one head shape.

Free all the prisoners in the Gift Shop by unlocking or trading.

Trade online with ten different players.

Use each weapon successfully.

Play and rate 10 user-created levels.

Download and host a game of user-created levels.