I don't remember if I made a thread about this or not, but I have ambitions about seeing this game superplayed.
Tamagotchi for GBC is based off the virtual pet keychain toys from the 1990s onward, which follow the same premise of hatching a little alien creature and taking care of it until it grows old and dies of natural causes. You have to maintain the usual needs, giving it food, cleaning up after it, giving it medicine when sick, turning the lights off when it's asleep, and play games with it when it wants attention. The GameBoy and GameBoy Color versions have received mixed reviews by certain people, but there are a second and third game that are supposed to be better. I may TAS those as well.
Link to video
I don't know if this is based off RNG or what, but, at any time, at any point, for ANY REASON at all, your pet can just flat out die right on the spot. It doesn't matter how healthy it is, how old it is, whether it's sick or not, or whether you've taken good care of it, at ANY cosmic point in the fabric of space/time, it can fall over dead. And the reason this is so scary is because there's no buildup to it, no introduction, no warning, no message box saying "Your pet is dying!" or anything like that. It just happens.
So, a TAS to manipulate this to happen as fast as possible would make for a VERY fast TAS. Not as fast as Portal A2600, but certainly the fastest GameBoy TAS.
What I'm worried about is the reception. Would there really be people willing to sit and watch a creature get cake shoved down its throat till it dies? There's no speed or entertainment tradeoffs involved, it's mostly just menuing. So I don't know.
A wise man once said "Damn, that's one hell of a steak."
I don't even know what's this game about. Is it like Nintendogs? Does it even have an ending? Are you describing a "fastest death" run, or does dying give the ending? Your video gives "An error occurred. Please try again later. (Playback ID: k9Dtu0EevwUVtP6E)
Learn More", and there's barely any info on the game in the post.
