That's because the GG board is slightly thicker than a regular board. Over time, using the game genie will really bend the pins in the 52pin connector. Replace the connector with a new one will get you games that work amazing, first time, sometimes without even pushing the game down!

50/50 mix of rubbing alcohol and qtips to clean the carts and a new 52 pin connector for the system means you will never have to blow again.