@Shaddam
Try getting different iso's or load the game from your copy in a different format/method. These trivial things usually are the problem. But if the interpreter isn't working properly you'll get constant bugs on many titles.

On a side note, the ps emulator psx4droid was pulled by Google. They pulled it because ZodTTd didn't make his source available; hence breaking GNU law. So I am sort of happy it was pulled.

Now N64oid can also be pulled, unless yonghz provides the source sooon (he usually makes them available after a month so he can make money). Sometimes being strict makes everyone hate you, but in the end it could be for the good of everyone (like removing anything racist/sexual/offensive/illegal etc).