catch trainer pokemon would be nice since all previous pokemon games had it?1. I have no idea what the master code was for, nor do I care to find out, so I won't be having anything to do with that code.
2. Black bars, there is a mod for that on Gamebanana.
3. Catch 100% I may look into if no one updates it soon.
4. Are you asking for a no pokeball bounce code? If so I have no idea where to start on that one.