Alright, so replaced your NES pin connector, but the games still aren't playing, so now what?
Ah yes, blowing in the cartridge, the old standby. While this does work, it can have negative long term effects. The biggest one is corrosion, since you're blowing into the cartridge you're getting moisture on the contacts, which in not good. Digital Press did a test on whether or not blowing on the cartridge would cause corrosion, and you can either go here to read the whole thing, or look at this image after the jump which sums it all up.
