Today at the flea market I got 6 games, one of them being Mega Man 3. I started playing it as soon as I got home. But it was so glitchy. On the title screen the picture of Mega Man doesn't even appear, and the game freezes up really quickly. I cleaned the cartridge with Windex (the game was extremely dirty, I used like 8 q-tips). It runs now but it slows down alot. What should I do?