A friend of mine bought four SNES Pal games from a garage sale and I have finally gotten around to trying them out to see if they work or not. I have broken the tabs out of my NTSC console and the games won't boot up. The console doesn't even recognize them. I have taken the boards out of them and inserted them straight into the system without the case and they still don't work. Is this normal or could they be dead? The carts are kind of worn out looking and discolored and yellowed. Any ideas?