f is Vita version F is PS3 version.
PS3 version of Project Diva got the capital letter cause of the DLC that vita version has.
So Project Diva F(PS3)= Project Diva f(Vita) + DLC
If you decide to take the easy way out, at least do it some interesting way, like 5 fishing magnets and ropes... Run out to the space x rocket as it's about to take off.... Ohhhh add some snow skiis and skii into to space!!!