Disney Tsum Tsum

"Disney Tsum Tsum" is a line of Japanese stackable stuffed toys based around characters under various Disney properties.

A special box of Kingdom Hearts Tsum Tsums were released at the Japanese D23 Expo in 2018, held February 10th-12th, containing Sora, Riku, Kairi, Mickey Mouse, Donald Duck, Goofy, a Shadow Heartless, and a Soldier Heartless.

The Line: Disney Tsum Tsum app features playable limited time Tsum Tsums for multiple characters. Sora and Riku were introduced in the Fantasmic event (April 2017) in Japan and Frozen event (September 2017) internationally. Halloween Town versions of Sora, Donald, and Goofy were also released during the Halloween event (October 2017) in Japan and Haunted Halloween event (October 2018) internationally. They were dubbed "Halloween Sora", "Mummy Donald", and "Bolt-Head Goofy" respectively. Aqua and Kairi were introduced in tandem with the Stitch's Cousin Search event (September 2018) in Japan and Stitch's Cousin Frenzy! event (January 2019) internationally. Ventus, Terra, and Chirithy were introduced in the Baymax event (September 2019) in Japan and Save San Fransokyo! event (April 2020) internationally. Sora in his Pirate outfit from Kingdom Hearts III and Young Xehanort were introduced in the Villains' Challenge: The Dark Flame event in Japan (September 2020) and internationally (January 2021) later on.

Furthermore, Line: Disney Tsum Tsum has run multiple in-game events utilizing Kingdom Hearts as a setting. In the first event, titled simply Kingdom Hearts, players completed in-game missions to collect stars and close Keyholes to various Worlds, earning the Shadow Heartless as a playable Tsum Tsum as an event reward. Playable Tsum Tsums of Sora in his Kingdom Hearts III outfit, Mickey in a black coat, Ansem, and Xemnas were also released in tandem with this event, which ran February 2019 in Japan and May 2019 internationally. The second event, titled Kingdom Hearts: Battles in the Tsum World, had players travel to various Worlds to cleanse them of Shadows. A paired Tsum Tsum of Sora and Roxas, Dark Riku, Mickey in his Kingdom Hearts III outfit, Axel, and Naminé were released in tandem with this event, which ran September 2022 in Japan and March 2023 internationally. The app icon and homepage for Line: Disney Tsum Tsum also changed to depict the Kingdom Hearts characters for the duration of this event.