Super Nes doesn't read all games

Well try cleaning the game packs out with qutips and rubbing alchal well there is a battery inside of super Nintendo game packs that save the game data and they can't work with out some power so maybe the batteries are dying then it could be that then.

either the optics cable that you are using or the optics port on the NES is faulty.. try finding a new cabkle on ebay

Well I think that maybe the controller ports are going on the console then thats why> it has nothing to do with the gamepacks they are fine or it might be a coincidense then. Try them on a different SNES to see if it works then if it does

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General Game Pak Troubleshooting (NES and Super NES)
Note: It is possible that the problem you have may be game play related. For example, if you cannot defeat a particular enemy, or are missing an item you need to complete an area, the problem is likely game play related and there is nothing wrong with your game. Please check our game play help for assistance.
If the problem you are experiencing is with just one game, please follow the steps below. If the problem is with all games, please visit the troubleshooting section for the system you have, by clicking here.

Check for Unlicensed products. Make sure that you're using only licensed products with your Nintendo system. Unlicensed products are not tested for compatibilty and may not work correctly with all games. Try playing the game without the unlicensed accessory.
Insert the Game Pak into the system. The Game Pak label should be facing the front of the machine (or facing up if you are using an original NES).
Make sure the Game Pak firmly clicks down into place.
Remove all accessories to see if the Game Pak works correctly without the accessory. If the game does work correctly once the accessory is removed, then the game pak and the accessory may not be compatible. Check the game pak instruction manual.
Check the instruction manual for the game to see if it requires any special accessories to operate (such as the Super Scope, NES Zapper, SNES Mouse, etc.).
Do not blow into your Game Paks or systems. The moisture in your breath can corrode and contaminate the pin connectors.
If these steps do not eliminate the symptoms you're experiencing with your game, we recommend purchasing a replacement from a retailer or online auction site that carries older products. For more information, click here.
Well it might be a problem with the graphics chip inside of the console

remove the cartridge and blow the cartridge slot of the SNES console. and also blow the cartridge its self. reinsert game cartridge and try to play it.

I don't know a lot about this console (the Retron 3), but the game sounds like it works fine, try using a different third-party console, I recommend the Retro Entertainment System, it's only around $20 - $25 on eBay, try a different NES game, if it doesn't work, than it's probably the controllers, get replacements, or the batteries are dead.

Well I think that the sound module piece inside of the console is going bad then.

Well try cleaning the game pack out with quips and rubbing alchoal well it could something might be wrong with the console then. Well I think that the console is detecting that the game pack is not an original it means that the game is a fake cartiage its possible if the game cartiage internals where damage or the game data is recked that the console could be tricked into thinking that it is a fake game pack however that is unlikely

mine won't work either :c maybe someone can help me? Mine used to work on my laptop and just suddenly wouldn't anyone someday [I think it stopped after my computer got a virus] My computer has been fixed since then but it still doesn't work on it, i works on my mom's computer perfect though :c

Well it could be the controllers but its probably that one of the wires have gone bad in the super nintendo. Maybe try replacing. Just and idea though.