Nintendo Sending Out Monster Hunter 4 Ultimate Demo Codes
Be sure to check your emails starting now :D.
Nintendo has started the gradual rollout of invites for the Monster Hunter 4 Ultimate Demo Code :D.
As per MyNintendoNews, there should be 3 spare codes in the email (aside from the one for you).
source MyNintendoNewsTags: Monster Hunter, Monster Hunter 4, Nintendo 3DS