You are having problems with your NES. What should you do

What are your problems? The most common problem is the power turning on and off in a loop and not playing the game. This is cause by the alloys in the game cartridges being bent. It's from the design of the NES, pushing down to lock the cartridge in place bends the alloys. It may also be caused by the alloys being corroded or dirty. If you take the cartridge in to a used game dealership they can usually fix the dirty or corroded alloy problem.