Here is the full list of all 13 Do Not Fall achievements.
Cleared all levels in Pineapple Juice. (Not include SP level.)
Purchased a pass.
Cleared all levels in Green Tea. (Not include SP level.)
Purchased a character.
Cleared all levels in Milk. (Not include SP level.)
Cleared all levels in Mineral Water. (Not include SP level.)
Cleared all levels in Sparkling Water. (Not include SP level.)
Cleared all levels in Marshmallow Chocolate. (Not include SP level.)
Cleared all levels in Shave Ice. (Not include SP level.)
Cleared all levels with S rank.
Completed all challenges.
Cleared all SP levels.
Achieved 100% completion.