Explore a level to a depth of 20 chests.
Enter a room that no longer exists.
Instantiate 500 rooms.
Create an impossible situation.
Transform 50 ooblecks.
Unlocked by unlocking the Recursion achievement.
Enter 100 cauldrons.
Do nothing.
Arrive nowhere.
Collect all crystals.
Collect all diamonds.
Find the way out.
Collect all crystals and diamonds in The Oobleck Conundrum.
Collect all crystals, diamonds and rubies in The Last Tapestry.
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