foreverkirby | Kirby Family (Unreleased GB Color) Showcase @foreverkirby | Uploaded September 2020 | Updated October 2024, 10 minutes ago.
What is Kirby Family? In short, it's a cancelled Game Boy Color software planned to be released in Japan to be compatible with Jaguar's sewing machine. The Jaguar model (JN-100) came with a cable that would link it to a Game Boy Color, and in the game the player can choose one of several designs that the machine can copy onto fabric.
This is a showcase of the leaked rom which can be found on the internet. You can basically only look at the available characters drawing for sewing. But it's still cool to kind of feel Kirby 64 as if it was released to the Game Boy.

Title Screen Music: youtu.be/9Zg5U-9lt7E

The following information is from Kirby Wiki:
"Kirby Family was a program developed by HAL Laboratory. It was a collection of 32 pre-set patterns forming the like of characters from the Kirby series, which, when transmitted by the Game Boy Color to a special embroidery machine manufactured by Jaguar, the pattern selected is reproduced on cloth. It was the spiritual successor of Mario Family, a Japan-only Game Boy Color game that operated exactly the same way. The final build of the game was leaked on September 9, 2020.
The program was showcased along with the embroidery machines at Nintendo Space World 2001, but the plans to retail it outside of the event for ¥6,800 on September 10, 2001 were scrapped."