
Polygon:
As Nintendo’s first internally developed game with new characters since 2014, Splatoon comes loaded down with some heavy questions, chief among them: Can Nintendo still catch and bottle lightning these days?
The answer is yes, although not without a few struggles along the way.

Nintendo has recently restored Wii U Mario Kart 8 and Splatoon online after five months of being offline.

Game Rant Writes "Mar10 Day is a fun yearly celebration of the Super Mario series, and Splatoon may warrant a fan-designated day of celebration in its own right."

How, exactly, did Splatoon reach heights rivalled only by Pokémon in Japan? New IPs from the House of Mario appear as often as shiny Pocket Monsters, yet typically move comparatively mediocre numbers or fall into relative obscurity behind the premium marques of Mario, Animal Crossing, Zelda, and Pokémon. Take Pikmin and ARMS, for example, which we adore but struggle to compete with the tentpole franchises when it comes to sales numbers or mainstream mindshare.
So, again, how has Splatoon risen to become one of Nintendo's most important series in Japan?