what is a group hatching?

[futreanimeartist]

you see i have more than 9 tamagotchis in my draw (no battries in) and i would like to know what a group hatching is, i was wondering if i could do it.

 

[.:Puma:.]

https://www.tamatalk.com/IB/index.php?showtopic=65

That should explain it all. In future, read the explaination topics before you ask what it is