MAME on PPSSPP please help

[LunaMoo]

Make sure you have it inside PSP/GAME folder as it's required for homebrew to get a valid (fake)gameID and most features require it and also switch to software renderer as many homebrew emulators(especially their menus) are really bad and just copy bytes to Vram instead of properly rendering, this will never work under hardware API's, that's why software renderer is required.