Maskutchi
About
Maskutchi, originally called Masktchi or Mask-tchi, is an adult Tamagotchi character that debuted on the original Tamagotchi.
Maskutchi has a round, white, bean-shaped body with a pair of stubby violet ears on top, has two stick legs, and wears a violet mask. In its original artwork, these violet parts were colored indigo instead. In its US artwork, it has a blue body, black ears and wears a black mask.
(Source: Tamagotchi Wiki)