Collect all crystals.

Collect all diamonds.

Find the way out.

Explore a level to a depth of 20 chests.

Instantiate 500 rooms.

Unlocked by unlocking the Recursion achievement.

Create an impossible situation.

Transform 50 ooblecks.

Collect all crystals and diamonds in The Oobleck Conundrum.

Enter a room that no longer exists.

Enter 100 cauldrons.

Collect all crystals, diamonds and rubies in The Last Tapestry.

Do nothing.

Arrive nowhere.