That might acturally be of copyright reasons: https://www.unhappybirthday.com/That's great but the game seems to be censored here and there, just take the happy birthday song as an example. Instead of having them singing the lyrics it was swapped to "la la la" so my guess is that they did this to not offend religious people who don't celebrate birthdays. Nintendo trying to play parent for everyone will just end up doing more harm than good.
Agreed, and this is only in Europe so I wonder what USA sales are like. I haven't checked yet.Awesome! 2 million is a huge amount for such a wacky title, especially one that was probably localized purely on a whim. Glad to see it sold so well.