Bikini is the sister game to Circus Queen (as I learned tonight).  It has all the features of Circus Queen, plus a new way to store your OK game for later play.  You can build up this 'futurity' game to 12 different positions, each which give a different game.  The normal red letter game has seven different positions.
 
The 3 in the orange scores as green makes a return, normal magic screen gameplay, including the blue section scoring.  Triple deck scoring, an extended time tree with rollovers rounds out the package.
 
Great beach-themed artwork on the cabinet and backglass.
Jeffrey Lawton describes Steve's Bikini here:
https://youtu.be/bX3LKXrEa14