The Mysteree! In... other forms?

Mystereevel was the easiest one since his head is based on a very stylized goat skull.

Mystereeger... I kinda updated his appearance along with this since the old one was... well, not very interesting to draw to begin with. I LIKE DIVING SUITS. They make the wearer look adorable, almost like a clumsy creature, and I want him to awaken endearment than horror since he's a clumsy noisy klutz than an actually threatening being.
But basically, Mystereeger is an animated diving suit, there's no-one inside it. :I

Mystereet was the toughest one since he doesn't represent any specific animal, so I drew a bunch of different ideas ... Yes, even a centipede. XD Makes sense in context. MYSTERY ANIMAL

AND YES
DIVING SUITS ARE ANIMALS