Here is the full list of all 23 Fall Balance Ball achievements.
Completed 25 level
Completed 2 level
Completed 50 level
Make 100 jumps
Make 1000 jumps
Complete level 51
Complete level 52
Complete level 53
Complete level 54
Complete level 55
Complete level 57
Complete level 58
Complete level 59
Complete level 60
Get to the crystal by jumping on disappearing platforms
Get to the crystal far away
Find the hidden crystal
Complete level 61
Complete level 62
Complete level 63