A recent move by Nintendo has fueled one of the biggest theories among Donkey Kong and Mario Kart fans. Nintendo has officially confirmed the secret character (whose name had been kept under wraps due to spoilers) at the finale of their new platformer, Donkey Kong: Bananza. The timing of this reveal has sent speculation about a major Mario Kart World DLC announcement to new heights.

Nintendo’s Hidden Name: King K. Rool

As players who completed the thrilling ending of Donkey Kong Bananza know, even after defeating the main villain Void Kong, the adventure doesn’t end. The series’ legendary antagonist, King K. Rool, returns as the final boss, delivering a huge surprise.

Since launch, Nintendo had refused to publicly mention K. Rool’s presence in the game to avoid spoiling this major twist.

Official Confirmation and Perfect Timing

• What Happened? Nintendo’s mobile app, Nintendo Today, was updated with a new Donkey Kong theme. Data miners discovered that an animation featuring King K. Rool is set to be released on 15 December 2025.

• Why Does It Matter? This date marks the first official, public acknowledgment of K. Rool’s appearance in Bananza.

Mario Kart World DLC Theory

What turns this simple app update into a major DLC clue for Nintendo fans is the timing and in-game evidence:

1. The Game Awards and Timing: The release date for King K. Rool’s animation, 15 December, is just a few days after The Game Awards 2025 (on 11 December). Nintendo has a history of announcing major DLC characters for games like Super Smash Bros. Ultimate at TGA.

2. Voice Actor Evidence (Crucial Clue): Right after the launch of Donkey Kong Bananza, sharp-eyed players noticed that the voice actors for King K. Rool and Void Kong (Tsuguo Mogami and Yū Hayashi) were credited in Mario Kart World’s credits. However, these characters were not part of the launch roster.

This is seen as the strongest evidence that Nintendo plans to add K. Rool and Void Kong as DLC characters, but held them back to avoid spoiling Bananza’s surprises.

What to Expect in the Donkey Kong DLC

If the theory is correct and the DLC is announced at TGA, here’s what might be coming to Mario Kart World:

• New Racers: King K. Rool and Void Kong.

• Extra Costumes: Bananza-themed outfits for Donkey Kong and Pauline (supporting the theory, as both currently have fewer costumes than other characters).

• Bananza Track: A new Grand Prix circuit inspired by the world of Donkey Kong Bananza.