Hi,
I use to have an A500+ back in the day. I think a lot of your compatibly problems with 1 Meg games is that they are looking for fast ram and not chip ram. To fix this google and find aminet and search for a program "degrader" try the it and tell it to fake fast ram. If it doesn't help try one called TUDE it looks good (I can't try them, I don't have an amiga here).
Regards,
Ben (fulltime Amiga user 1988 - 1998)
