Nintendo has published a video teaching Japanese players how to redeem Piranha Plant for Super Smash Bros. Ultimate.

The process is simple – by January 31, 2019, redeem the Gold Points for Super Smash Bros. Ultimate on your Nintendo Switch. An email containing a Piranha Plant code will be sent to you within 2 to 3 days. Redeem the code on the eShop.

If you downloaded the game, you only have to keep a lookout for the email containing the code. Watch the tutorial below:

https://www.youtube.com/watch?v=YwYU7_9jFe4