Dissidia 012 (Duodecim) Final Fantasy

Dissidia 012 [Duodecim] Final Fantasy (known in Japan as Dissidia Duodecim Final Fantasy) is a fighting game developed and published by Square Enix on March, 2011 for the Sony PSP. The game featured many DLCs, each one granting access to new characters to recruit. With the shut down of the PSP frontend online shop they can no longer be obtained on the original console. The PS Vita release of the PSP version allows to download all of the content, but to be able to get everything on the original hardware a Sony PS3 is needed (see below for details).

How to obtain
The DLCs can still be obtained on the PS Vita release from the Playstation Store or, on the PSP, by purchasing the PSP version on a Playstation 3 system and then transferring them on the handheld console.

A guide on how to transfer content can be found here.