Sol76 is correct...when it comes down to skill, this is really no longer the case for this achievement
Below is a video of when I did the above method as per Bomb Jack DK / Sol76 / adamrlz.
I was able to activated it twice: @0.38 secs
I made it up to level 39. Keep in mind that it does get progressively harder as the higher the levels, the less time you have to clear the table so you will definitely need more than 1 ball to clear it in the time allotted to reach level 30.
Hope this helps.