Don't ever bother with the egg crate because it only boosts your score 10 points. That's it! No use spending the money that doubles at the end of the game for 10 lousy points. You get the same thing on your second combo in a screen...for instance, as soon as you make a combo, any other combo in the screen adds 10 points to that second combo. Buying the egg crate only bypasses that first combo that you have to get. Does that make sense? Bottom line, don't bother with the crate.

   it is a waist of money you never get anything extra.