Thanks to wth who improved VHBL while he worked on the Everybody’s Tennis port, we were able to improve slightly the Motorstorm port as well. I’m sure you don’t really care about the technical details, what matters is that games using the Quake Engine such as KurokPSP (and probably Quake itself) now work!
Geometry Wars Portable, which was also not working for some reason, is now working fine.
I’m sure other games are now compatible, but I didn’t test everything of course. Sadly, I still couldn’t get gpsp to work, but I heard some people are getting it to work fine through the Motorstorm exploit, if you do, please feel free to share links!
VHBL is a homebrew loader for the Playstation Vita. It allows you to run fanmade games as well as emulators on the PS Vita.