Nemutchi, but I don't have grey skin. Mabey I picked the wrong username, but I don't want to change it.
Awww, I like your username!
I like your name
Besides in my mind, all characters of the Tamaplanet are different colours, tones and shapes (just like IRL).
For example: You look at Kuromametchi and mametchi and their obviously different, but I'm sure there's other mametchis who are lighter in colour closer to white and some that look tanned and closer to a brownish yellow.
That's my thought process about the whole situation anyay.
I honestly have no idea what kind of tamagotchi character I would be. Someone would have to throw some suggestions my way of who I might be in the Tamaplanet world