i know a little trick to get a bunch of gems. if you plug your iphone or ipod touch so it doesnt die this will be easier. you also need to have the under water theme for this to work. you need to get 32 thousand points. if you take the ipod and turn it sideways so the home button is facing the right the frog will jump on the platforms and go into the actual part and if you are on underwater theme you will have 20% more gems to get.