Monster Hunter Frontier G/Z on the PS Vita, there is no official English release, but a community-developed English patch exists. This patch is used primarily to play on private servers like since official servers were shut down in 2019. English Patch and Private Server Setup
Game Version: You need the Japanese version of the game updated to version 1.99. monster hunter frontier g ps vita english patch link
To use an English patch on your PS Vita, your console must be running custom firmware (HENkaku/Enso). Monster Hunter Frontier G/Z on the PS Vita,
How to find reputable community resources safely there is no official English release
Conclusion
Rain Frontier Discord Server: This is the primary community for Vita players. It hosts the official setup guides and direct links to the MediaFire/Google Drive English patches for the Vita version.