English patches for the PS Vita have transformed the handheld into a "definitive" machine for Japanese exclusives. While the official library is vast, fan-made translations unlock high-quality JRPGs and visual novels that never officially left Japan.
Translating the Classics: A Guide to PS Vita English Patches english patch ps vita games
The following are highly-regarded titles with complete or near-complete fan translations: Catherine: Full Body English patches for the PS Vita have transformed
Even if you follow a guide, errors happen. Here is a quick FAQ: english patch ps vita games