A small team of fans has released an English translation patch for the Japan-only PSP game Digimon World Re:Digitize.
You can download the patch for both PSP and the PSP emulator PPSSPP (works on PC and mobile) on the team's website.
However, the team has noted that there are bugs if you run the patch on PSP currently. "We have figured out the cause and a likely solution to the problem, and should have an updated version of the patch out in a day or two," writes the team.
In the meantime, while those bugs are squashed, the patch runs just fine on PPSSPP.
This translation patch is the result of almost three years of work. It converts all names, titles, and in-game descriptions in the game into English.
The only exception is the opening video, which is left in the original Japanese, for "legal and technical reasons."
Digimon World Re:Digitize was originally released for PSP in 2012. It also got an enhanced port for 3DS in 2013.
However, none of these versions of the game ever made it out of Japan. Hence these fans have sought to bring it to English-speaking fans with this translation patch.