Just before Christmas, a trip to Nintendo Co.¡¯s flagship store in Tokyo would have required an hour¡¯s wait just to get in and buy a plush Mario toy or a set of chopsticks bearing Luigi¡¯s face.

Opened in November on the sixth floor of the renovated Shibuya Parco shopping mall, the constantly packed 300-sq.-meter showcase exhibits the appeal of Nintendo¡¯s intellectual property contrasted against the conservatism that leads it to habitually underestimate its popularity.

The long lines are a sign of the customer loyalty Nintendo¡¯s counting on in 2020 as it ramps up mobile efforts and ponders successors for the aging Switch.