I'm starting to get it now....If you hatch an egg,take enough care to get to become a Tamatchi,then enough good care to get it to become a hashitamatchi,then,enogh care it can become Bill The Secret Character,which tends to be selfish and get up late,then after the MatchMaker comes,you have another Generation,then just wiat until it's 11+ and it'll turn into the Old Timers and then if you mate the two Old Timer togetther,you'll get the next generation and you'll have the secret character called an Oyajitchi which is another secret character,and it's said that if you have the Ninja Tamagotchi(Gozuratchi),and wear the cape a lot of times,it migjht stay as the secret character,if you know anymore growth chains like this just post them here