The Kingdom Hearts Tamagotchi debuted in Japan in October 2022, and the means of getting the Heartless form for Sora appeared. However, it turns out it “ends” the game for people when they do. If someone lets Sora or presumably your active character “die,” then they will turn into a Heartless. [Thanks, Aitai Kimochi!]
Here’s the Aitai Kimochi Twitter video showing off a Sora that turned into a Heartless in the Kingdom Hearts Tamagotchi.
Omg this is what happens when the Sora tamagotchi dies- he becomes a Heartless and then fades out of existence.
You then see the Kingdom Hearts symbol and it’s game over LOL… pic.twitter.com/dHJqC6Z17N
— ☆オードリーAudrey☆ (@aitaikimochi) October 31, 2022
Death is a common fail-state with this kind of virtual pet. It can happen in Tamagotchi runs due to either user-error or old age. Depending on the version you’re using, there could be different ending scenes. For example, you might see an angel or a ghost next to a gravestone. It is currently unknown if there are different “death” scenes in the Kingdom Hearts Tamagotchi.
The Kingdom Hearts Tamgotchi doesn’t just feature Sora. As you play, you might also unlock characters like Donald, Goofy, Riku, Kairi. Roxas, Axel, Xion, Aqua, Ventus, and Terra. There are also themed foods, minigames, and events, with Heartless enemies also appearing to occasionally “attack” your character.
The Kingdom Hearts Tamagotchi is available in Japan. A worldwide release hasn’t been confirmed yet.