So I got mario rpg from ebay awhile ago and when I try to play, it looks really glitchy and sometimes freezes. I took it apart and cleaned the gold part of the cartridge but it still looks the same. I have notice that the green part of the cartridge (don't know the proper name for it) looks a little dirty which ill post some pictures so y'all see what i'm talking about, plus its kinda sticky. I kinda have the problem with tiny toons adventures on the title screen by the way.
its kinda hard to see but thats where its dirty and sticky
and this what the game looks like when I play it