These have been on the clearance endcap for about a month at my local Walmart, always priced at $17.xx. Today I decided to price check it and it came up at $5. Looks pretty consistent across all the Walmarts in the area, and widely available in stock. I bought two for multiplayer, left about five for others.
Mediocre reviews, but worth a shot. The box indicates that it also works on NES Classic, Wii, and WiiU.
https://www.walmart.com/ip/My-Arc…14&veh=af
https://brickseek.com/walmart-inv…=54594497