All I want for Christmas is a Kawasaki K-100!  This was one of the last fighter planes the Japanese developed before the end of the war, and was basically a re engined Tony.  While opinions on the performance of this plane seemed divided it is generally agreed that it was an excellent performing fighter.  There are a number of well documented combats in which the K-100  outperformed Hellcats, Corsairs, and Mustangs.  
It would be a lot of fun and add to the main arena game.
