Donkey Kong Bananza: DK Island & Emerald Rush is a downloadable content expansion for the 2025 Nintendo Switch 2 platformer developed by Nintendo Entertainment Planning & Development. The add-on centers on a reimagined version of DK Island, featuring recognizable locations from the Donkey Kong series such as DK's Treehouse and Gangplank Galleon. Players can take in-game photographs alongside familiar characters including Diddy Kong, Dixie Kong, Cranky Kong, Rambi, and Squawks. The expansion introduces DLC-exclusive decorative statues of these characters, which can be placed around DK Island and are obtained using Banandium Chips. Additional content is tucked throughout the environment, with hidden bonus stages discoverable among mine cart tracks and jungle ruins, rewarding thorough exploration of the island's updated landscapes.