Bubble Matsuri returned for its tenth edition with a large VTuber Mario Kart collaboration and open community races today. Organizers framed the event as a “grand return to Mario Kart,” assembling a collection of VTubers to race around the world in multiplayer sessions. The Bubble Matsuri slot is running under the Cyber Hearts umbrella and is being used to raise money for Rainbow Railroad. Posts from participants describe community hangouts, charity streams, and multiple creators joining Mario Kart World and other segments across the event schedule.
