Nintendo World Championships: NES Edition can be played with all sorts of controllers, but if you want to perfectly recreate the retro speedrunning magic, you're going to need the official wireless NES controllers. Thankfully, they're currently on sale.
Switch Online members in the US and Canada can now get 20% off these controllers until 31st July 2024. Again, this is an "exclusive" offer for paid subscribers and is only available through the My Nintendo Store. This two pack will set you back $47.99 (instead of the usual price of $59.99).
These wireless NES controllers also include a rechargeable battery, and can be used with various other games and game libraries, and will also be compatible with the new Joy-Con controller dock coming out this October.
In some other related news, Nintendo is now allowing the general public in Japan to purchase Switch Online wireless Famicom controllers. In other words, you no longer have to be a Switch Online subscriber to purchase these items. If we hear anything similar announced locally in the future, we'll let you know.