Now you can try to get past that tricky spot again and again.
Games made available on the Virtual Console service of the Nintendo eShop will have full save states. This means that it is possible to save your game during gameplay, and retry from that point in the game multiple times.
For the Wii, it is only possible to "suspend" a game, creating a pause point that you can go back to once. Adding save states to Game Boy titles solves the problem of games that had no save option at all or used passwords.
So next week when you are playing Super Mario Land, Game Over will not be a threat.