Here is the full list of all 20 Balance Ball achievements.
Start the game
Complete The Game
Died 1 times
Died 10 times
Died 25 times
Died 50 times
Died 100 times
Died 150 times
Died 300 times
Died 500 times
Died 1000 times
Complete The Game 2 times
Complete The Game 5 times
Complete The Game 10 times
Complete The Game 20 times
Complete The Game 50 times
Complete the game without death
Complete the game by dying 5 times
Complete the game by dying 10 times
Complete the game by dying 25 times