Here is the full list of all 13 The Paper Trials achievements.
Have a paper streak of 100
Have a paper streak of 200
Have a paper streak of 300
Get an S rank on Doctors Medicine
Get an S rank on Expert Doctors Medicine
Complete doctors medicine on any difficulty
Complete a level with only using the map for less than 10 seconds
Complete Scare Fields on any difficulty
Get an S rank on Scare Fields
Get an S rank on Expert Scare Fields
Complete Fun Time on any difficulty
Get an S rank on Fun Time
Get an S rank on Expert Fun Time