heat senitive. exept it should have some design on it but still be heat sensitive. it would be sorta like having a different tamagotchi for every mood youre in, but the same pet.
I picked other, becuase I think a water proof Tama would be great! Becuase most of the time I go swimming I swim in short. And I uashly have my tama in my pocket... I forgot it was there a couple times and lost quite a few tamas.
i dunno y u pple like the 'heat sensitive' thing, bcoz it serves no purpose... glow-in-the dark is better, so if u go to the cinema u can see ur tama. otherwise they should add in a light (as in the REAL light) so u can still check on ur tama when it is dark or wateva.