Tamagotchi

The Tamagotchi is a handheld digital pet that was created in Japan by Akihiro Yokoi of WiZ and Aki Maita of Bandai. It was released by Bandai on November 23, 1996 in Japan and on May 1, 1997 in the rest of the world, quickly becoming one of the biggest toy fads of the late 1990s and the early 2000s.

Upon activating the toy, an egg appears on the screen. After setting the clock on the device, the egg will wiggle for several minutes, and then hatch into a small pet. In later versions, inputting the player's name and birthday is also required when setting the clock, and at birth, the player can name the pet and learn of its family group and/or gender. The player can care for the pet as much or as little as they choose, and the outcome depends on the player's actions. The first Tamagotchis could only be paused by going to set the clock, effectively stopping the passage of time in the game, but in later models a pause function was included.