Gudetama Tamagotchi

I've finally gotten to play with my Gudetama Tamagotchi, and I can say I'm having a lot of fun! I really like seeing Bandai doing these Sanrio collaborations.
 

 First off, it's super-cute. It's smaller than I thought it would be, about as tall and wide as a Mini, but the back side is fuller and rounder.

It seems to be based off of the Tamagotchi Nano, so the Gudetama Tamagotchi has a few more features than a Mini.