Here is the full list of all 32 Gravity Den achievements.
Die ten thousand times!
Scare away 1000 crows!
Collect all stars in the hardcore levels!!!
Collect all stars in the hardcore zone #5!
Complete all hardcore levels!!!
Complete all levels in Hardcore Zone #5!
Collect all stars in the hardcore zone #4!
Complete all levels in Hardcore Zone #4!
Die a thousand times!
Scare away 250 crows!
Collect all stars in the hardcore zone #3!
Complete all levels in Hardcore Zone #3!
Complete 10 hardcore levels using only gravity shift!
Collect all stars in the hardcore zone #2!
Complete all levels in Hardcore Zone #2!
Complete 5 hardcore levels using only gravity shift!
Complete hardcore level using only gravity shift!
Collect all stars in the hardcore zone #1!
Collect all stars in the normal levels!!!
Complete all normal levels!!!
Complete all levels in Hardcore Zone #1!
Collect 100 stars!!!
Die a hundred times!
Complete 20 levels using only gravity shift!
Collect 50 stars
Complete 10 levels using only gravity shift!
Die a ten times!
Collect 10 stars!
Die once!
Complete level using only gravity shift!
Scare away a raven!
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