We are currently have:
*Street Fighter X Tekken (& that means that Tekken X Street Fighter too as well)
*Blazblue Continuum Shift II Extend
*Ultimate Marvel vs. Capcom 3
*Mortal Kombat (2011)
I don't know about Batman: Arkham City.
Much i'd like to see:
*Spider-Man Edge of Time (since 3DS of this game)
*Tekken Tag Tournament 2 (since 3DS's 3D Prime Edition)
*Soul Calibur V
*The King of Fighters XIII
*Virtua Fighter 5 Final Showdown
*Dead or Alive 5
*Super Street Fighter IV Arcade Edition Version 2012 (since 3DS's 3D Edition)
*X-Men Destiny