What event announced Paper Mario: Color Splash in March 2016?

Paper Mario: Color Splash was announced during a Nintendo Direct presentation in March 2016.

Nintendo revealed the Wii U game in the Nintendo Direct held on March 3, 2016. The presentation also highlighted games such as Star Fox Zero, Kirby: Planet Robobot, and Monster Hunter Generations. Color Splash was announced as a 2016 release rather than receiving a specific launch day at the reveal.

The announcement introduced a colorful follow-up to Paper Mario: Sticker Star. Mario’s adventure takes place on Prism Island, where he uses paint and battle cards while investigating drained color and missing Toads. Intelligent Systems developed the game, with Nintendo publishing it for Wii U.

The announcement was sometimes confused with E3 because Nintendo showed more of the game there later in 2016. E3 was a subsequent promotional event, not the event that first announced Color Splash. The game ultimately launched worldwide on October 7, 2016, several months after its Nintendo Direct reveal.