Here is the full list of all 13 NEKOPARA Extra achievements. It takes around 0-1 hour to unlock all of the achievements on Windows.
Try playing it in Chinese!
Try playing it in Japanese!
Boing Boing
Petted Cinnamon
Petted Coconut
Petted Maple
Petted Azuki
Petted Shigure
Merry Christmas!
Petted Chocola
Petted Vanilla
Try playing it in English!
Good Morning