Make roms work properly

[ssshadow]

I know but I want to know if there are a specific reason.

For each game that I try each message is diferent. One even doesn't say any fail. Other the sound but even desactivating the sound still crash.

I tried to search a connection to this problems like firmware version or a specific funtion non implement but didn't get it.

Probably random bugs in already implemented functions causing some games to silently crash or behave weirdly. Persona 3 is a good example of this. The game runs absolutely fine at full speed on Android... except it is almost completely black, pretty much the only thing that renders are magic effects in combat.