Here is the full list of all 44 Fjong achievements.
Beat the Secret Game
Find the Secret Game
Get a Purple Stars on Level 20
Get a Purple Star on all Levels
Get a Purple Stars on Level 19
Get a Purple Stars on Level 18
Get a Purple Stars on Level 17
Get a Purple Stars on Level 16
Get a Purple Stars on Level 15
Get a Purple Stars on Level 14
Get a Purple Stars on Level 13
Get a Purple Stars on Level 12
Get a Purple Stars on Level 11
Get a Purple Stars on Level 10
Get a Purple Stars on Level 9
Get a Purple Stars on Level 8
Get a Purple Stars on Level 7
Get a Purple Stars on Level 6
Get a Purple Stars on Level 5
Get a Purple Stars on Level 4
Get a Purple Stars on Level 3
Get a Purple Stars on Level 2
Get a Purple Stars on Level 1
Get 3 Stars on Level 20
Get 3 Stars on all Levels
Get 3 Stars on Level 19
Get 3 Stars on Level 18
Get 3 Stars on Level 17
Get 3 Stars on Level 16
Get 3 Stars on Level 15
Get 3 Stars on Level 14
Get 3 Stars on Level 13
Get 3 Stars on Level 12
Get 3 Stars on Level 11
Get 3 Stars on Level 10
Get 3 Stars on Level 9
Get 3 Stars on Level 8
Get 3 Stars on Level 7
Get 3 Stars on Level 6
Get 3 Stars on Level 5
Get 3 Stars on Level 4
Get 3 Stars on Level 3
Get 3 Stars on Level 2
Get 3 Stars on Level 1