Given that when you purchase this game brand new, you get a physical copy of X, but a voucher for a digital download for X-2, and if one were to sell the physical cart of X, but obviously you can't relinquish ownership of X-2, how should one track that?
Final Fantasy X/X-2 HD Remaster - PlayStation Vita [NA]
Final Fantasy X-2 HD Remaster - PlayStation Network (Vita) [NA]?
In which case if you own a pre-owned copy of the game, would you list it as
Final Fantasy X HD Remaster - PlayStation Vita [NA]?
You can't purchase Final Fantasy X-2 digitally separately from X, it is only available for purchase in a bundle.