Both the 3DS and Wii U can be easily hacked to play pirated games without purchasing any additional hardware, there's numerous guides on how to do this that are

Both the 3DS and Wii U can be easily hacked to play pirated games without purchasing any additional hardware, there's numerous guides on how to do this that are a simple google search away, and the entire game catalogue has been dumped by game preservation groups like no-intro. As long as the consoles still work, all of their games can continue to be played even if Nintendo no longer sells them.