Hell yeah. Yeah - 25 years of crud builds up. Those contacts just need a lil cleaning and you are good to go usually. Also if you feel so inclined - swapping out the pin slot in the system itself is very easy and cheap. There’s no soldering on the NES, not sure about the Sega… But honestly if just cleaning the pins on the game did the trick, I wouldn’t fuss with it.
I’ve not got any to hand but the cotton bud did help!
Hell yeah. Yeah - 25 years of crud builds up. Those contacts just need a lil cleaning and you are good to go usually. Also if you feel so inclined - swapping out the pin slot in the system itself is very easy and cheap. There’s no soldering on the NES, not sure about the Sega… But honestly if just cleaning the pins on the game did the trick, I wouldn’t fuss with it.
Have fun!