Well there are is only one cheat on this level and its on top of the bouncy thingy but it only gives you ice which doesnt really help you, so my advice is to stay at the bottom at just try to shoot them all....good luck!
look it up on youtube.com
It is called how to beat level 72 in bubble struggle 2 rebubbled walkthrough and it will walk you right through the entire level.
I would suggest going up to the top level first being very careful not to touch the white bubbles. You cannot shoot them but they can kill you. Go to the right first again, being very careful (this...
It's really hard - took me ages.There are no cheats.Go as quick as you can round the first bit.Don't shoot all the purple ones at once, so you are left with all the little ones - then you will run...