One tip for playing old video games:

If you're using a system that plays nes games that is a fake nes system... that only has av output.

And you buy super mario bros. or joust , it can be hard to remove the games.

I bought a super mario bros. game with duck hunt and it was hard to remove the game.

Then I bought one copy with just supermario bros. and not duck hunt. And another copy of joust. And that time I did't have that problem.

No other games gave me this problem except those two ones.