The publisher of the upcoming Nintendo mobile game "Super Mario Run," DeNA, has ended its physical presence in the West.

Nintendo's mobile partner has recently announced its plans to abandon its Western branch DeNA Global, Inc., which is based in San Francisco, TouchArcade reported.

"In the Game Business, DeNA has focused on three key regions - Japan, China, and the West," DeNA wrote on the notice of dissolution. "During the fiscal year ended March 31, 2016, DeNA optimized the organizational structure and game portfolio in the West and has been developing games for the Western market with a lean structure since."

"However, since the games did not meet expectations, DeNA has decided to dissolve and liquidate its West subsidiaries, including DeNA Global, Inc."the publisher confirmed.

DeNA may be shifting its attention to its China and Japan offices, particularly DeNA Tokyo, moving forward, the publisher will still be present in the Western market. The publisher also stated that they will be focusing on "collaborations with external partners" instead of developing games themselves.

Despite the setback, gaming-market analyst Serkan Toto assured fans on Twitter that "Super Mario Run" is still set for a December 2016 release. Toto also commented that it is DeNA, not Nintendo, that is handling most of the developing tasks for the game, according to VentureBeat.

The new side-scrolling game was announced by the father of Mario himself, Nintendo's Shigeru Miyamoto, at this year's Apple press event, much to the fans' excitement. The game is the first ever "Super Mario" title to break into the mobile gaming world, according to Business Insider.

Even Apple's main man, CEO Tim Cook, is excited about the upcoming mobile game, especially as Apple users will be experiencing the game way before Android users can. "We could not be more honored that Nintendo chose to bring Mario to iOS first," the Apple boss said.

"Super Mario Run" will be released on iOS this December, with the Android release to follow sometime next year.