Here is the full list of all 16 Joyo Kanji Quiz achievements.
Score 70% or more on All Kanji Level
Score 100% on All Kanji Level
Score 100% on Secondary School Level
Score 70% or more on Secondary School Level
Score 100% on Grade 6
Score 70% or more on Grade 6
Score 70% or more on Grade 5
Score 100% on Grade 5
Score 100% on Grade 4
Score 70% or more on Grade 4
Score 70% or more on Grade 3
Score 100% on Grade 3
Score 70% or more on Grade 2
Score 100% on Grade 2
Score 70% or more on Grade 1
Score 100% on Grade 1