The tamagotchi you got was Nikatchi he has a point on his head and a big smile. My cousin gets him all the time. It just means your taking fairly good care of him.
To get a different character try expirementing with different things like letting the hearts get down to 1 before you feed the tama. Anyway good luck hope I helped.
To be totally honest, I'm afraid that Nikatchi comes from rather bad care. Try experimenting with different care strategies and see what you get.
Unless you got Mizutamatchi, which is a child. Well, nobody really knows the nature of the childs. Really, what child you get doesn't really matter. However, it gets important once you get to the teen (see the above part about Nikatchi)
I really disagree! I think Nikatchi comes from good care! Unless, it is a mizutamatchi, then it dosen't matter, all toddlers are equal! But I respect other peoples opinions, lol!