It would be nice if gems weren't hilariously unobtainable. You say we can buy them with coins, but it takes 10,000 coins for 10 gems, which is hilariously high I agree to a special quest for gems. + if you agree.
You know,just for fun,I lost all my bubbles on purpose.When I got shot as a basic tank,I was transported to another bubblefield with 2 dozen life carriers and 20 little guys.When I exited,I was a ghost sniper again,good as new! :)