If the game is still glitchy, it needs a heavier 1 time cleaning.
chloe j skolos, Amazon
13 January 2015
Summary: When I first got the game it didn't work very well. I had to push it to the side just to get it to work. Sometimes it wouldn't work at all. Sometimes spotty at best. Other times it would work fine. I knew it wasn't my 72 bit connector as that had been replaced. So I knew it was the game.
Summary: I'm amazed at the condition of this game. Mario/Duck Hunt is a 29 year old game and the cartridge that is received looks brand new! No writing or stickers. and the Label is in great condition. I am pleased with this purchase.