Nintendo Developers Pack GDC 2026 With Donkey Kong Bananza Destructible World Talk

Dual lines snaked around the third floor of San Francisco's Moscone Center on March 11 before Nintendo producer Kenta Motokura and Technical Program Lead Tatsuya Kurihara even took the stage. It was the only session Nintendo gave at GDC 2026, and by every account the most heavily attended, drawing several hundred developers ranging from recent graduates to industry veterans for an hour-long breakdown of how the Super Mario Odyssey team built Donkey Kong Bananza's destructible worlds.

The panel, titled "Constructive Destruction: Fusing Voxel Tech and 3D Action Platforming in Donkey Kong Bananza," traced the game's origins to a surprisingly personal source. Motokura pointed to Super Mario Bros. world 1-2, the iconic underground level, as a formative childhood influence. "I've loved this scene since I was a kid," he said. "You can interact with almost everything on the screen, and depending on how you go about that, there are multiple ways to proceed." That memory shaped a core design principle: rather than having a player character interact with a single fixed point on an object, the team wanted interactions that contacted a surface and affected multiple points simultaneously. From that idea, Donkey Kong Bananza took shape.

Kurihara described how the concept moved from inspiration to prototype. Working with assets carried over from Super Mario Odyssey, he built early test environments that were deliberately rough. In one sequence, a Goomba rigged with firing mechanics borrowed from the Sand Kingdom's Knucklotec boss was used to break apart prototype terrain, letting the team measure and refine how voxels responded to destruction. "After making a voxel prototype, I felt the ability to destroy any part of the terrain was a satisfying new interaction," Kurihara said. "I especially liked the idea of being able to rip off chunks of the terrain and throw it to destroy things or make it stick. It was exciting. I felt we could create a game around this core idea."

The technical ambition carried real costs. Building on a voxel foundation while targeting 60 frames per second proved difficult enough that the project, originally in development for the original Nintendo Switch, could not be fully realized on that hardware. The Switch 2's additional processing headroom changed the equation, allowing the team to construct DK and Pauline's journey to the planet's core with significantly more freedom than the original platform would have permitted.

Motokura acknowledged that the development path was not smooth. "There were times confusion permeated the team. There were even times when I wanted to say, 'Oh, banana,'" he said through a translator, referencing the game's catchphrase. "Even in those times, we understood each other's ideas and continued forth, like when Donkey Kong gives a thumbs up."

Throughout the session, Motokura and Kurihara returned repeatedly to the idea of "fusing" complementary ideas, and both emphasized that the finished game was a collective achievement. The talk closed with a group photograph of the full core development team, internally called the "Banana Bunch," a rare public acknowledgment of who built the game at a company that rarely connects names to projects.

Donkey Kong Bananza launched exclusively on Nintendo Switch 2 on July 17, 2025. The DK Island and Emerald Rush DLC, which added new locations and mechanics, launched in September for $19.99. IGN awarded the base game a 10/10, calling it "a truly groundbreaking 3D platformer, with satisfying movement, powerful abilities, impressive destructible environments, and clever challenges.