To unlock the Title Match mode, play through "Story" mode with any character and become world Champion. Once the game's credits are finished, press "start" to return to the main menu and choose to play through "Story" mode once again. At the character selection screen, choose your new World Champion (the character you used to complete "Story" mode with the first time, now indicated with a championship belt icon next to their portrait). After "Story" mode's brief intro, a new menu will be unlocked and displayed before each match enabling the ability to change arenas and customize match types.