Here is the full list of all 12 Bubble Ball! achievements.
Get a score of 2000+ in any level.
Get a score of 3000+ in the Sports level.
Get a score of 3000+ in the Planets level.
Get a score of 3000+ in the Bubbles level.
Get a score of 3000+ in any custom level. You found some nice settings, didn't you?
Make a Beach Ball!
Make the largest planet!
Make the largest bubble...ball.
Unlock all achievements. But are you on the leaderboards?
Make the largest ball in a custom level.